Words Starting With "U"

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Urinary

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Relating to the urine or the act of urinating.

Urinate

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To release urine from the bladder, usually in small amounts.

Urinated

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The word "urinated" is the past tense of the verb "urinate", which means to release or void (urine) from the bladder, typically through the urethra. It can also be used figuratively to describe the act of releasing a pent-up feeling or emotion, similar to excreting waste.

Urinates

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The verb "urinates" means to produce or pass urine. It is a medical or technical term used to describe the act of passing urine, typically used in a more formal or scientific context.<br><br>Example: "The dog needs to urinate every few hours."

Urinating

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The act of passing urine from the bladder, often referring to the process of exhaling or releasing urine from the body through the urethra.

Urination

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The act of passing urine, or the discharge of urine from the urinary bladder through the urethra.

Urinative

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Urinating in a poetic or literary sense, "urinative" is not a common word in everyday language. However, it can be broken down into a close variant which is 'urine' + a suffix -ative, implying making, producing, or characterized by something.<br><br>The closest opposite can be 'inaudible'.

Urine

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The fluid produced by the kidneys and excreted by the body, bearing waste products, such as urea, and excess substances from the blood; liquid output of the kidneys.

Uriniferous

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Producing or relating to urine.

Uriniparous

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Producing urine, producing urine that is loaded with urates and other waste, especially relating to the kidneys' impairment or malfunction.

Urinogenital

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Relating to the urinary system and the reproductive organs.&#x20;

Urinometer

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A urinometer is an accurate device used to measure the specific gravity or density of urine. It was used in the past, but has been mostly replaced by digital devices.

Urinometry

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Urinometry is a term derived from the Greek words "ouron" (urine) and "metron" (measure). <br><br>Urinometry refers to the measurement of the volume, concentration, or amount of urine produced by the kidneys and excreted through the process of urination. <br><br>In a medical context, urinometry is often used to assess kidney function, diagnose kidney disorders, or monitor the progression of kidney disease. A common urinometry test measures urine concentration by determining the specific gravity of urine, which is the ratio of the density of urine to the density of water.

Urinous

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Strongly smelling like urine, having a smell associated with urine, especially the smell of ammonia.

Urite

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A misspelling of "write".

Url

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Uniform Resource Locator<br><br>A URL, or Uniform Resource Locator, is a web address used to locate a specific resource on the internet, such as a website, web page, or web application.

Urls

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URL stands for Uniform Resource Locator, which is a web address that specifies the location of a particular resource on the internet. It is a string of characters that identifies the protocol, domain name, path, and other parameters that allow a web browser to locate a resource, such as a website, image, or document.

Urmia

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Urmia can refer to:<br><br>1. Lake Urmia: a large saltwater lake in northwestern Iran.<br>2. Urmia University of Medical Sciences: a public university in Iran.<br>3. Urmia Nazarin: a historical book written by Amin Bagbagshi.<br>4. Urmia FK: an Iranian football club.<br>5. Urmia, Urmia Province: a city in East Azarbaijan Province, Iran.<br><br>As a given name, Urmia can be seen in its variant names such as Surname, Urm casting, Urmia, Akee urmia polls such as Ly.

Urn

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A container made of clay, metal, or plastic, typically rounded or oval in shape, used for holding things, especially when they are going to be used in a ceremony.

Urnfield

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An urnfield is an archaeological term that refers to a site or area where urns were buried, typically in ancient cultures for the repossession of the dead, often containing the ashes of cremated individuals.

Urns

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A container, typically made of clay, metal, or plastic, with a narrow neck that is used for holding liquids or powdery substances, such as sand or cremated remains.

Urobilin

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Urobilin is a yellow-green pigment formed as a byproduct of the breakdown of bilirubin in the intestines. Bilirubin is a yellow compound that occurs in the normal catabolic pathway that breaks down heme in red blood cells.

Urobilinogen

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Urobilinogen is a pigmented compound produced during the breakdown of bilirubin in the gut, from the action of intestinal bacteria.

Uroboros

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The word "uroboros" (also known as "ouroboros") refers to a symbolic representation of a snake eating its own tail, often used to represent the cyclical nature of life, death, and rebirth. It is a mythical and ancient symbol that appears in various cultures, including Greek, Egyptian, and Norse mythology. The uroboros represents eternal renewal, self-fertilization, and the infinite cycle of existence.

Urocanate

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Urocanase is an enzyme that catalyzes the hydrolysis of urocanic acid.

Urocele

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A urocele is a swelling of the urinary bladder that balloons outward through the penis. It's usually caused by a blockage or weakness in the tissue that supports the bladder called fascia, which can lead to urine leaking out into the scrotum.

Urocerata

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Urocerata refers to a type of flowering plant family, specifically the Uroceratae, which is a small division of flowering plants. It is also known as the "skeleton-leafed orchid".

Urochesia

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Urochesia is a rare or obsolete term that refers to penis inflammation or irritation, also known as urethritis.

Urochezia

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The word "urochezia" is a rare term that refers to a type of odd or incongruous expression of humor or a joke that is so bad or silly that it's almost cruel.

Urochord

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A urochord, also known as a tunicate or lancelet, is a member of the subphylum Urochordata, a group of chordates that live a sessile or crawling lifestyle, typically attached to rocks or reefs. They are commonly found in marine environments. Urochordates have a rudimentary notochord (nervous cord), pharyngeal slits, and a post-anal tail, which are characteristics shared with more complex chordates, but lack a vertebral column and are generally more primitive in structure. <br><br>Some common features of urochordates include a filter-feeding structure, a water vascular system, and a reproductive system that includes a dorsal nerve cord. They are thought to be closely related to vertebrates and are often used as subjects of study in the field of embryogenesis, or embryonic development.

Urochorda

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The term "urochorda" refers to a subgroup or a division within the subkingdom Tunicata, a group of marine invertebrates also known as tunicates or sea squirts. They are a type of marine water filter feeder that filters food particles from the water, mostly plankton and small organic matter.<br><br>Urochordates are characterized by their non-bilateral body plan and their ability to filter feed. They are a phylogenetically distinct group, considered to be more closely related to chordates (which include vertebrates) than to other groups like echinoderms and mollusks.<br><br>The characteristics of urochordates include:<br><br>1. <strong>Filter-feeding:</strong> They have a siphon to draw in water, and a network of fine fibers called pharyngobranchial filaments that capture small food particles.<br>2. <strong>Non-bilateral symmetry:</strong> Unlike most animals, which have bilateral symmetry (head and tail), urochordates are radially symmetrical. Their body parts are distributed around a central axis, like the spokes of a wheel.<br>3. <strong>Tunic:</strong> A tough outer layer or tunic covers their body and is made of cellulose.<br>4. <strong>A sac-like body:</strong> Early in life, the developmental stage of urochordates are tadpole-like and become sessile (immobile) after attaching to a substrate by a stalk.<br><br>The term 'urochorda' therefore refers to this formative stage in the life cycle of tunicates as they transition from a free-swimming or sessile flat creature with a nerve net or ventral hollow nerve cord to higher (vertebrate-like) life forms, though not evolving to resemble adult forms we consider 'chordates'.

Urochordal

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Relating to or resembling the notochord, a flexible, dorsal (upper) cord that extends along the length of an embryo and functions as a precursor to the vertebral column in vertebrates, particularly in humans.

Urochordata

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The term "Urochordata" refers to a group of aquatic animals that belong to the subphylum Tunicata in the phylum Chordata. They are commonly known as tunicates or sea squirts.<br><br>The Urochordata are characterized by the presence of a notochord, a dorsal nerve cord, pharyngeal gill slits, and a post-anal tail. However, unlike the true chordates, such as vertebrates, urochordates have a relatively short embryonic period and undergo a free-swimming larval stage before attaching to a substrate and undergoing metamorphosis.<br><br>These creatures are mostly marine and are found in oceans around the world. They include about 1,200 species, ranging from simple solitary forms to complex colonial organisms.<br><br>Some key characteristics of Urochordata include:<br><br> A body covered by a tunic or fibrous skin<br> A midline notochord or "nerve cord" that runs along the length of the organism<br> A dorsal, hollow tubular nerve cord<br> A pharynx with gill slits<br> A post-anal tail in many species<br><br>Overall, the Urochordata represent a distinct group of animal that occupy a unique position in the evolutionary tree of chordates.

Urochordate

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Urochordata is a subphylum of chordates that have a notochord, a dorsal nerve cord, pharyngeal slits, and a post-anal tail at some stage in their development. The term "urochordate" refers to their tail-like structure.

Urochordates

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Urochordates are a group of marine animals that belong to the subphylum Urochordata. They are a type of chordate, characterized by the presence of a notochord, a dorsal nerve cord, and a post-anal tail. Urochordates are commonly known as tunicates or sea squirts.<br><br>Urochordates are sessile animals, meaning they are attached to a surface, and their form can change shape depending on the environment. Their larval stage is similar to that of other chordates, but their juvenile and adult forms are significantly different.<br><br>Some common characteristics of urochordates include:<br><br> A notochord: a flexible rod-like structure that runs along the length of their body<br> A dorsal nerve cord: a nerve-like structure on the back of their body<br> A post-anal tail: a tail that protrudes from the back of their body<br> A unique body shape: tunicates have a distinctive sac-like body with a siphon and a crown-like crown.<br><br>Examples of urochordates include:<br><br> Siphonophorae (colony-forming tunicates)<br> Thaliacea (colonial tunicates)<br> Ascidiacea (single tunicates)<br><br>Urochordates are often used as model organisms in scientific research, particularly in studying developmental biology and evolution.

Urochrome

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Urochrome is a green pigment derived from the urine of cows. It is a strong solution of urobilin, which is a yellow to brown pigment produced by the bacterial decomposition of heme in the gastrointestinal tract.