Words Starting With "H"
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Hemidomes
Hemidomes refers to a type of architectural structure, specifically a church or temple with a hemispherical (half-spherical) dome as its primary design feature.
Hemidysplasia
Hemidysplasia is a rare congenital disorder in which half of the body fails to develop properly due to a deficiency in the formation of bones, muscles, and other tissues. It is often associated with conditions such as cuts, wounds, or abnormal skin pigmentation on the affected side of the body.
Hemiectomy
Hemiectomy is a surgical procedure that involves the removal of half of the brain. It is most commonly performed on patients with severe and intractable epilepsy, where the hemispherectomy is used to reduce the frequency and intensity of seizures. The procedure can also be used to treat other conditions, such as childhood hemiplegia, a condition that affects the movement and development of one side of the body.
Hemifacial
Hemifacial refers to a condition in which one half of the face is affected, either physically or functionally. It can describe a condition where one side of the face is paralyzed, or a facial feature such as the eye, nose, or mouth is asymmetrical or significantly smaller than the corresponding feature on the other side of the face.
Hemifusion
Hemifusion is a process in cell biology where two adjacent cell membranes partially merge, creating a small fusion pore. This process is a transitional stage between simple fusion and full fusion, where the two membranes eventually become completely merged.
Hemigamous
Hemigamous refers to a type of marriage in which one husband takes two or more wives, typically sisters, either simultaneously or consecutively. The term is often used to describe practices found in some indigenous cultures, particularly in South Asia, Africa, and the Pacific Islands.
Hemigastrectomy
A hemigastrectomy is a surgical procedure in which the left half of the stomach is removed. This type of operation is typically performed to treat conditions such as cancer, gastric ulcers, or inflammatory bowel disease. The term "gastrectomy" literally means "cutting of the stomach," and the prefix "hemi-" refers to the removal of half. Hemigastrectomy is sometimes also referred to as a subtotal gastrectomy, as the surgery involves removing a significant portion of the stomach, but not the entire organ.
Hemiglossectomy
Hemiglossectomy is a surgical procedure that involves removing half of the tongue (glossa). It is usually performed to treat tongue cancer or to remove a tongue lesion. The remaining portion of the tongue is left intact, allowing the patient to still speak, eat, and perform other normal functions.
Hemihedrism
Hemihedrism is a term used in the field of geology to describe a type of crystal structure that has a repeating pattern of alternating right- and left-handed hexagonal rings. In other words, it refers to the arrangement of atoms or molecules in a crystal that displays a hemihedral symmetry, where the crystal appears to have a mirror symmetry about a single plane, but lacks a true mirror plane. This phenomenon is relatively rare and is often seen in certain minerals, such as oligoclase feldspar.
Hemihedron
A hemihedron is a polytope that is half the size of the complete polytope it is derived from, and it is formed by deleting one vertex from a complete polytope.
Hemihepatectomy
Hemihepatectomy is a surgical procedure where one half of the liver is removed, known as a hemi-liver resection. It is typically performed in cases of liver cancer, liver cirrhosis, or liver trauma to remove a damaged or diseased portion of the liver and improve liver function.
Hemihypertrophy
Hemihypertrophy is a rare medical condition characterized by an unusual and unexplained difference in the size of bodily organs or limbs on one side of the body, compared to the other side.
Hemiketal
Hemiketal is a type of organic compound that is derived from a sugar molecule. It is a five-membered ring structure with two hydroxyl (-OH) groups and a carbonyl group (CO) attached to the same carbon atom. Hemiketals are formed when a sugar molecule loses a molecule of water (H2O) to form a ring structure. This ring structure is more stable than the open-chain form of the sugar molecule, which makes hemiketals more common in biological systems.
Hemilaminectomy
Hemilaminectomy is a surgical procedure where only half of the lamina, the posterior part of a vertebra, is removed. This is typically done to relieve pressure on the spinal cord or nerves and often used to treat conditions such as spinal stenosis, herniated discs, or spinal tumors.
Hemimandibulectomy
Hemimandibulectomy is a surgical procedure in which half of the lower jawbone (mandible) is removed. It is typically performed to treat benign or malignant tumors, infections, or injuries that affect the mandible.
Hemimellitic
Hemimellitic refers to a type of organic compound that contains four methyl groups and has the general formula C6H6O6. This term is used in chemistry to describe the structure and properties of these compounds, which are often found in natural products and have important biological functions.
Hemimetabolic
Hemimetabolic refers to a type of insect development that involves a gradual process of metamorphosis, characterized by a series of distinct larval stages, each with a different physical characteristic. In hemimetabolism, the young insect, called a nymph, resembles a small adult and goes through several molts as it grows and develops. Examples of insects that undergo hemimetabolic development include cockroaches, grasshoppers, and crickets.
Hemimetabolism
Hemimetabolism is a type of insect development in which insects undergo a series of molts, or shedding of their exoskeleton, without a distinct pupal stage. It is a characteristic of insects in the subclass Pterygota, which includes all winged insects except for Holometabola, such as butterflies and beetles. In hemimetabolous insects, the young insects, or nymphs, resemble small adults and go through a series of molts as they grow and develop, eventually reaching adulthood.
Hemimetabolous
Hemimetabolous refers to a type of insect developmental pattern in which the young, or nymphs, look like small versions of the adults and go through a series of molts (shedding of skin) to reach adulthood. This is in contrast to endopterygotes, which undergo a dramatic transformation, or metamorphosis, from larva to pupa to adult. Hemimetabolous insects include true flies, dragonflies, grasshoppers, and crickets. Examples of hemimetabolous insects include the common housefly, the cricket, and the dragonfly.
Hemimethylated
Hemimethylated refers to the state of a DNA molecule where only one of its two nucleotide bases has been methylated, which means a methyl group has been added to one of its nitrogen atoms. This is in contrast to fully methylated DNA where both nucleotide bases have been methylated, or demethylated DNA where neither nucleotide base has been methylated.
Hemimorphic
Hemimorphic refers to a type of crystal or mineral that has grown to form two separate parts, each with a different growth pattern, and which are connected at a midline. This term is often used to describe certain types of quartz crystals, such as smoky quartz or rose quartz, that have developed different colors or inclusions on either side of the midline.
Hemimorphism
Hemimorphism is a term used in geology and crystallography to describe a crystal structure that has a partially symmetrical lattice and partially non-symmetrical lattice. In other words, the crystal structure has a mix of symmetrical and asymmetrical features. This is in contrast to a monopoly crystal, which has a completely symmetrical lattice, or an anhedral crystal, which has no clear symmetry. Hemimorphism is often observed in minerals that have a layered or planar structure, such as mica or phyllosilicate minerals.
Hemimorphite
Hemimorphite is a species of mineral, a zinc oxide hydroxide. It is a rare earthy mineral with a usually limestone-yellow to yellow-brown color. It is a twins crystal, meaning that it forms in a specific way where two individual crystals grow together, often with their faces parallel to each other.
Hemin
Hemin is a type of porphyrin, a class of organic compounds. It is also known as proto IX or hematin.
Heminephrectomy
Heminephrectomy is a rare surgical procedure in which one half of the kidney is removed.
Hemingway
Ernest Hemingway was an American novelist, short-story writer, and journalist who is known for his distinctive writing style, which is characterized by simplicity, clarity, and a focus on concrete, descriptive details. He is often credited with developing the "iceberg principle" of writing, where much of the meaning is left unsaid and the reader is expected to infer the underlying emotions and themes.
Hemiola
A hemiola is a rhythmic pattern in music, particularly in classical music, where three notes or pulses are fitted into the space of two beats. This creates a sense of tension and release, adding complexity and interest to the rhythm.
Hemiolic
Hemiolic refers to a type of stanza or verse in poetry, characterized by an iambic meter with an unstressed syllable followed by two stressed syllables in each foot, rather than the usual iambic rhythm with one unstressed and one stressed syllable. This creates a more stressed rhythmic pattern.
Hemiopia
Hemiopia is a rare neurological disorder that is characterized by the loss of visual field in one half of the visual field, typically on the same side of the body as the affected brain hemisphere. This means that the individual with hemiopia is unable to see objects, people, or anything in their peripheral vision on the affected side, which can be particularly difficult for people who rely heavily on their peripheral vision, such as drivers, athletes, or people who spend a lot of time outdoors. Hemiopia is often caused by damage to the brain due to stroke, traumatic brain injury, or infections, although in some cases it can occur suddenly without a known cause. Treatment for hemiopia typically involves counseling, visual rehabilitation therapy, and the use of adaptive devices to help the individual compensate for their lost visual field.
Hemiopsia
Hemiopsia is a partial blindness or inability to see in one half of the visual field. It can be caused by damage to the optic nerve or the brain's visual processing centers.
Hemiparalysis
Hemiparalysis is a medical term that refers to the partial paralysis of one half of the body, typically resulting from a stroke or traumatic brain injury. The term "hemi-" comes from the Greek word for "half", and "paralysis" means "without movement".
Hemiparasitic
Having a parasitic relationship with one of its two sides, as a parasitic plant that lives on the vitality of one half of a twin plant, while the other half of the plant derives its nutrients from non-parasitic means.
Hemipareses
Hemiparesis is a medical term that refers to a condition in which one side of the body is weaker or partially paralyzed than the other. It is often caused by damage or lesions to the brain, typically due to a stroke, traumatic brain injury, or other neurological disorders. As a result, a person with hemiparesis may experience weakness, numbness, or paralysis on one side of their face, arm, or leg.
Hemiparesis
Hemiparesis is a medical term that refers to a type of weakness or paralysis that affects one side of the body, typically caused by damage to the brain, spinal cord, or peripheral nerves. The term literally means "half-weakness" in Greek, with "hemi" meaning half and "paresis" meaning weakness or paralysis.
Hemiparetic
Hemiparetic refers to a neurologic condition characterized by weakness or paralysis on one side of the body, typically due to a stroke or other structural brain damage. The term "hemiparesis" describes the weakness or paralysis in one half of the body, with symptoms usually affecting the arm, leg, and face on the same side. The term is often used in medical and rehabilitation contexts to describe individuals experiencing motor deficits as a result of brain or spinal cord damage.
Hemipelvectomy
Hemipelvectomy is a surgical operation that involves the removal of half of the pelvis. It is a major operation that is typically performed in cases where there is severe damage to the pelvis, such as from a trauma or a tumor, and other treatments have been unsuccessful.