Words Starting With "R"
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Rhomboideus
The rhomboideus muscle is a muscle in the back that helps to stabilize and move the scapula (shoulder blade). It is a diamond-shaped muscle that runs from the spinous processes of the lower thoracic vertebrae to the medial border of the scapula near its junction with the spine.<br><br>There are typically three muscles in the rhomboideus group:<br><br> Left and right rhomboideus minor muscles<br> Left and right rhomboideus major muscles<br><br>The rhomboideus muscles work together to:<br><br> Retract the scapula (bring it towards the midline of the body)<br> Elevate the scapula (raise it up towards the head)<br> Depression of the scapula is also assisted by these muscles, although it's assisted more by the trapezius.<br><br>Damage or strain to the rhomboideus muscle is known as rhomboideus strain and can result from overuse or repetitive movements of the shoulder or upper back. It may cause pain, stiffness, and restricted movement of the chest wall.
Rhomboids
Muscle groups in the upper back and middle back that form a quadrilateral shape, typically associated with specific exercises like rows and lat rows, and assist in movements like scapular rotation and arm extension.
Rhombomere
In biology, a rhombomere is a repeating segment of the hindbrain in vertebrate embryos. During the early stages of development, the hindbrain is divided into seven or eight clusters of neurons, called rhombomeres, which will later differentiate into different parts of the brain. Each rhombomere is responsible for the development of specific neural circuits and cranial nerves.
Rhombomeres
A zoological term!<br><br>A rhombomere is a segment of the neural crest, a part of the embryo's neural tube. In chordates, including vertebrates, the neural crest is a region on either side of the neural plate that gives rise to various cell types, including neurons, glial cells, and pigment cells.<br><br>In the developing embryo, the neural crest differentiates into rhombomeres, which are a series of repeating modules or segments that eventually give rise to various cranial and spinal nerves, as well as some non-neural tissues.<br><br>Each rhombomere corresponds to a specific level of the developing nervous system and is delaminated from the neural tube, ultimately resulting in the formation of distinct neural structures and cranial nerves in the adult nervous system.<br><br>Rhombomeres play a crucial role in the patterning and development of the enteric nervous system, the nervous system of the gastrointestinal tract, and the formation of various cranial nerves, including the cranial nerves III, V, VII, IX, X, and XI.
Rhombopteryx
A rare and interesting word!<br><br>Rhombopteryx is a genus of theropod dinosaurs that lived during the Middle to Late Triassic period, around 230-218 million years ago. The name "Rhombopteryx" comes from two Greek words: "rhombos" meaning "diamond" and "pteryx" meaning "wing".<br><br>Rhombopteryx was a small, bipedal carnivorous dinosaur, about 1-2 meters (3-6 feet) long. It had a distinctive diamond-shaped pelvis and a long, narrow tail, with a crest or bump on its head, suggesting it may have had a bony plate or ornamentation.<br><br>The rhombopterygid dinosaurs were thought to be one of the earliest known groups of theropod dinosaurs, and were likely one of the origins of the more advanced theropod dinosaurs that would come later, such as the well-known Velociraptor and Tyrannosaurus rex.
Rhombus
A rhombus is a type of polygon that has four equal sides and four equal interior angles. It is a flat, two-dimensional shape with opposite sides that are parallel to each other and opposite angles that are also equal. A rhombus can also be defined as a parallelogram with all sides of equal length.
Rhombuses
A rhombuses is a type of quadrilateral where all four sides are of equal length, and opposite angles are equal.
Rhonchal
Vocalic (/rhɒŋkəl/). <br><br>(US, informal) Nasal or secretory discharges from the nose or sinuses weakening the voice
Rhonchi
Rhonchi refers to abnormal sounds produced by the lungs during breathing, characterized by a harsh, coarse, or rattling noise. They are often associated with respiratory conditions such as chronic obstructive pulmonary disease (COPD), bronchiectasis, and pneumonia.
Rhonchial
Haven't sounded since 9th grade health class... The rhonchial is a type of sound made when air passes through clogged airways that narrow, like when you have a cold or asthma. A rhonchial sound is often described as a loud, wheezy, or squeaking sound that can be heard when a person speaks or breathes.
Rhonchisonant
The word "rhonchisonant" refers to the quality or character of a sound resembling or associated with a stridor, which is a high-pitched sound made on exhalation, typically in the case of croup or bronchitis. This term is mainly used in medical contexts, particularly in otolaryngology (the field of medicine and surgery concerned with the ears, nose, and throat) to describe a type of cough or noisy breathing.
Rhonchus
A rare medical term!<br><br>Rhonchus refers to a harsh, grating sound heard during auscultation (listening with a stethoscope) of the lungs, typically over an area where an obstruction or narrowing is present, such as in chronic bronchitis or asthma. It sounds like a "snoring" or "grunting" noise.
Rhonda
Rhonda is a given name, typically feminine, of Scottish and Welsh origin. It is derived from the Celtic name Rhianton, which means "great rhododendron" or "noble" and "gift of the moon". As a surname, it evolved from the Scottish and English surname Murchadh, a Gaelic personal name associated with the word "murca" or "sea lord".
Rhone-alpes
Rhone-Alpes is a former administrative region in southeastern France, located on the western end of the Alps mountain range. It was one of the 22 regions of metropolitan France before it was abolished in 2016. The name "Rhone-Alpes" comes from the Rhone and Alps rivers, which flow through the region.
Rhone
The Rhône is a major river in eastern France and Switzerland, about 812 kilometers long and it drains most of central-eastern France. <br><br>It is a significant waterway in the southeastern region of France, where it flows through the city of Lyon. The river originates in Switzerland, where it is called the Rhin, joining the River Aare to form the Reuss.<br><br>The Rhône is joined by the Saône River in Lyon. The joining rivers form a unique opposing currents phenomenon that is known as the "Saône Seine tidal conveyor belt."<br><br>From Lyon, the Rhône flows northwards, along with the waterway connected to the Mediterranean and flows to the sea.
Rhopalic
Rhopalic is a rhetorical device used in speech or writing, where a phrase is repeated by using synonyms, often in a series of words. It is also known as "reduplication." The word "rhopalism" although not widely used, describes a rhopalism in poetry or rhythm, specifically a short succession of identical words.<br><br>Examples of how it is used include repeating a word many times with slight modifications, for example: "free, frank, frank, frankness, franker", rather than using identical words in repetitive pattern like: "free, free, free".
Rhopalium
Rhopalium is a rhinophoral organ found in certain invertebrates, usually cephalopods, such as octopuses. It is a small, sensory appendage that is paired and homologous to the mandibular palp of other arthropods, such as insects. The rostral margin of the rhopalium bears rows with the primitive New World short-beaked rhinoporidae was an order of primitive cephalopods characterized by their small hinged shells in groups of two.
Rhopalocera
Rhopalocera is a suborder of butterflies, also known as the "true butterflies". It is a very large and diverse group, comprising about 18,500 species, making up nearly 90% of all butterfly species. The name "Rhopalocera" comes from the Greek words "rhopalon", meaning "knob" or "small club", and "keras", meaning "horn".
Rhopaloceral
Rhopaloceral refers to the structure of the shell or profile of a leaf that is shaped like a balancer, where a hinge, or the insertion point of the petiole, is at the basal or proximal end and there are two basal ears or auricles on the petiole.
Rhoptries
The words "rhoptries" refers to a structure found in certain unicellular parasites, such as Toxoplasma gondii. Rhoptries are organelles that are involved in the invasion of host cells.<br><br>In more detail, rhoptries are paired, secretory organelles of the sporozoan parasites, such as Plasmodium spp. and Toxoplasma gondii. They are involved in the parasitoid invasion of host cells and the formation of parasitophorous vacuoles.<br><br>The term "rhoptries" is derived from the Greek word "rhopos" which means "blunt" or "bodied". Rhoptries are typically club-shaped and are one of the most distinctive features of the parasitoid's cells.<br><br>In Toxoplasma gondii, rhoptry secretion proteins interact with the host's cell membrane to facilitate the parasite's invasion of the cell, while also providing the necessary energy to accomplish this.
Rhoptry
I couldn't find any definition for the word "rhoptry" in my available sources. It's possible it may be a misspelling, a word related to a specific field or context, or a word that doesn't exist in dictionaries.
Rhotacised
In phonetics, the term "rhotacised" refers to a dialect or accent in which the sound /r/ (the "r" sound) is pronounced after vowels. In some dialects, the /r/ is not pronounced after vowels, but in a rhotacised accent, it is. <br><br>For example, in Received Pronunciation (often considered the standard accent of British English), the word "car" is pronounced as /kär/ (with a vowel sound followed by the /r/ sound); whereas in some non-rhotic dialects, such as Cockney, the word "car" is pronounced more like /kä/, with no /r/ sound.<br><br>So, rhotacised refers to the pronunciation of the /r/ sound after vowels, which distinguishes it from non-rhotic pronunciations where the /r/ sound is not pronounced in this position.
Rhotacism
Rhotacism is a speech disorder or a speech impediment in which the sound /r/ (a trill, as in "red" or "car") is mispronounced at the end of words. Those who have rhotacism pronounce /r/ as /w/ or /v/, so "red" sounds like "wed" or "ved", and "car" sounds like "caw".
Rhotacistic
Having or showing a tendency to pronounce the sound "r" with a humming or guttural sound.
Rhotacized
In linguistics, "rhotacized" refers to a non-standard dialect of a language, particularly pronounced in English, in which the sound /r/ is pronounced after the vowels A, E, I, and U, even when the letter R comes after a consonant and after any vowel for some varieties of English. <br><br>Examples include:<br><br> Car -> Kar<br> Carrot -> Kar-rot<br> Fair -> Far<br><br>However, in Received Pronunciation of English (RP), as well as some dialects of the language, the sound /r/ is often not pronounced after the vowels A, E, I, and U, which may lead people using this accent to be labeled as "non-rhotic" or to "drop the R".
Rhotic
The term "rhotic" refers to a type of accent or dialect in which the sound /r/ is pronounced after a vowel. This is in contrast to non-rhotic accents, where the /r/ is often silent after a vowel.<br><br>In rhotic accents, the /r/ is often pronounced as a distinct sound, especially in words like "car," "bar", and "far". This means that the /r/ is pronounced with a clear and typical "r" sound.<br><br>Examples of rhotic accents include many North American dialects, such as General American, some Scottish and Irish dialects, and some Caribbean dialects.<br><br>In contrast, non-rhotic accents, such as Received Pronunciation (RP) or Cockney, often do not pronounce the /r/ sound after a vowel, so instead of "car", it sounds like "cah".<br><br>Rhoticity is an important feature of some English accents and can affect how words are pronounced and spoken.
Rhoticisation
Rhoticization refers to the process by which non-rhotic languages or dialects, characterized by the absence or near-absence of the sound /r/ in certain positions, evolve to incorporate this sound in their pronunciation. This can occur through contact with languages that have a presence of /r/, such as in the process of language convergence or borrowing.<br><br>For example, in the past, Received Pronunciation (RP) in England did not have a distinct pronunciation of the sound /r/. The historical pronunciation had a different set of features, and it was often phonetically and phonologically realized as a non-r or /r/ was absent altogether. However, the influence of immigrant languages such as Scottish and Irish has led to certain forms of RP exhibiting rhoticity under certain syllable conditions, similar to those found in American English.<br><br>Rhoticization can also be seen in non-standard dialects.
Rhoticism
Rhoticism refers to a linguistic phenomenon in which a consonantal sound pronounced as [r] is pronounced significantly different from other languages or even in the same language at other times.
Rhoticity
Rhoticity refers to the pronunciation of the sound /r/ in certain languages, especially in English. In rhotic accents, the sound /r/ is pronounced after vowels, whereas in non-rhotic accents, it is often reduced or dropped.<br><br>In non-rhotic dialects, when a word ends with a vowel followed by "r", the "r" sound may be absent or reduced, such as in Received Pronunciation (RP) of English, where the word "car" might be pronounced more like "cah". In contrast, in rhotic accents, the "r" sound is pronounced, so "car" would be pronounced as "car".<br><br>Rhoticity is an important aspect of language variation and can be used to distinguish between different regional or social dialects.
Rhoticization
Rhoticization is the process by which a non-rhotic accent becomes rhotic. In phonetics, "rhotic" refers to a speech sound or accent in which the sound /r/ is pronounced, especially at the end of a syllable. Historically, many English accents were non-rhotic, meaning that the sound /r/ was often dropped in elision before consonants or at the end of a syllable.<br><br>Examples of non-rhotic accents include Received Pronunciation (RP) and many regional accents of British English, as well as many varieties of American English, such as in New York City. These accents often reduced the sound /r/ to a glottal stop (represented by an apostrophe, ') or dropped it altogether.<br><br>Rhoticization is the process by which regional dialects with non-rhotic accents begin to pronounce the sound /r/ again, especially at the end of a syllable. This can occur due to language contact, language change over time, or exposure to other accents or dialects that pronounce /r/ distinctively.<br><br>For example, in the 20th century, the New York City accent was highly non-rhotic, but has undergone rhoticization over time, with younger speakers and those with more exposure to non-regional accents tending to pronounce /r/ more distinctly.<br><br>Rhoticization can be a complex process that affects the pronunciation of other sounds and is influenced by various factors including linguistic, social, and geographical factors. It can lead to changes in the overall sound and intonation patterns of speech, such as increased resonance in certain vowels or modification of diphthongs.<br><br>Rhoticization can be a slow and continuous process that affects a community over many generations. It can occur due to internal linguistic and social factors, such as language contact, or external factors, such as media, education, and migration.
Rhotics
Rhotics refer to speech sounds or accents in which the sound "r" is pronounced aloud. In phonetics, a rhotic is a dialect or language in which the sound /r/ is pronounced with its characteristic resonant quality, separate from the alveolar approximant or tapped or trilled /r/ sounds that are sometimes used to avoid this quality.<br><br>In linguistics, there are several types of rhotics:<br><br>1. Pure rhotic or r-ful: languages or dialects in which the /r/ sound is always pronounced clearly when preceded by a vowel, such as in American English, Brazilian Portuguese, and Scottish English.<br>2. Semi-rhotic: languages or dialects in which the /r/ sound is pronounced only when word-final or before a vowel-consonant sequence, such as in Irish English, some Scottish accents, and some English dialects in the UK.<br>3. Non-rhotic: languages or dialects in which the /r/ sound is not pronounced after vowels, typically replacing it with a sound combination, such as in some English dialects (e.g., "car" sounds like "cah" in Cockney Rhyming Slang).<br><br>Non-rhotic accents are often associated with social class and geographical location, particularly among varieties of British English.
Rhubarb
A type of prickly, tart, and edible vegetable or herb often used in sweet dishes, such as pies and jams, due to its unique flavor and texture. Rhubarb is commonly growed in gardens in temperate climates and is a popular ingredient in many cuisines worldwide.
Rhubarby
The word "rhubarb" has multiple potential meanings depending on the context in which it is used. Here are a few possibilities:<br><br>1. A type of vegetable: Rhubarb is a perennial vegetable often used in pies and tarts. Its tart flavor is obtained from the leafy stalks, which are typically paired with sweet ingredients to balance its natural bitterness.<br><br>2. A phrase to indicate debate: "Rhubarb" can also be used as a verb or noun to describe a conversation or situation where people are arguing or debating. This usage can be found in idiomatic phrases like "to talk a lot of rhubarb," "planting the rhubarb patch," or "rhubarb in the bushes," often in the context of gossip or rising tensions.<br><br>3. Slang: In some contexts, particularly in the American West, "rhubarb" is used to directly refer to arguments, disputes, or loud conversations.
Rhumb
A rhumb is a line on the surface of a sphere that is, in general, neither a great circle (a circle lying on the surface of a sphere whose center is the center of the sphere) nor a small circle (a circle lying within the surface of a sphere).<br><br>In navigation, a rhumb is a straight line on a map or a nautical chart that follows the same bearing, or compass direction, as a ship or other vehicle. Rhumbs are used to represent the path that a vessel will follow on the surface of the Earth.
Rhumba
Rhumaba or rumba (from Spanish: rumba) is a type of music with influences from Africa and Spain, known for its slow and sensual rhythms, strong emphasis on percussion, and complex rhythms.