WordFnd.com

398 Words That Start With HY

Part of Speech:
Word Definitions Synonyms
hyacinth (noun) a red transparent variety of zircon used as a gemstone Synonyms: jacinth
(noun) any of numerous bulbous perennial herbs
hyaena (noun) doglike nocturnal mammal of Africa and southern Asia that feeds chiefly on carrion Synonyms: hyena
hyalin (noun) a glassy translucent substance that occurs in hyaline cartilage or in certain skin conditions Synonyms: hyaline
hyaline (noun) a glassy translucent substance that occurs in hyaline cartilage or in certain skin conditions Synonyms: hyalin
(adjective) resembling glass in transparency or translucency Synonyms: hyaloid
hyalinisation (noun) the state of being hyaline or having become hyaline Synonyms: hyalinization
hyalinization (noun) the state of being hyaline or having become hyaline Synonyms: hyalinisation
hyaloid (noun) the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina Synonyms: hyaloid membrane
(adjective) resembling glass in transparency or translucency Synonyms: hyaline
hyaloplasm (noun) the clear nongranular portion of the cytoplasm of a cell Synonyms: ground substance
hyaloplasmic (adjective) of or relating to hyaloplasm
hyaluronidase (noun) an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids Synonyms: Hyazyme, spreading factor
hybrid (noun) a word that is composed of parts from different languages (e.g., `monolingual' has a Greek prefix and a Latin root) Synonyms: loan-blend, loanblend
(noun) a composite of mixed origin
(noun) (genetics) an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species Synonyms: cross, crossbreed
(noun) a car which runs on two power sources, usually an internal combustion engine and an electronic motor Synonyms: hybrid car
(adjective) produced by crossbreeding Synonyms: intercrossed
hybridisation (noun) (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids Synonyms: crossing, interbreeding, hybridization, hybridizing, cross, crossbreeding
hybridise (verb) breed animals or plants using parents of different races and varieties Synonyms: cross, interbreed, hybridize, crossbreed
hybridization (noun) (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids Synonyms: crossing, interbreeding, hybridisation, hybridizing, cross, crossbreeding
hybridize (verb) breed animals or plants using parents of different races and varieties Synonyms: cross, interbreed, hybridise, crossbreed
hybridizing (noun) (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids Synonyms: crossing, interbreeding, hybridisation, hybridization, cross, crossbreeding
hybridoma (noun) a hybrid cell resulting from the fusion of a lymphocyte and a tumor cell; used to culture a specific monoclonal antibody
hydantoin (noun) any of a group of anticonvulsant drugs used in treating epilepsy
hydathode (noun) a pore that exudes water on the surface or margin of a leaf of higher plants Synonyms: water pore, water stoma
hydatid (noun) cyst filled with liquid; forms as a result of infestation by tapeworm larvae (as in echinococcosis)
hydatidosis (noun) infestation with larval echinococci (tapeworms) Synonyms: hydatid disease, echinococcosis
hydra (noun) trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality
(noun) small tubular solitary freshwater hydrozoan polyp
hydralazine (noun) an antihypertensive drug (trade name Apresoline) that dilates blood vessels; used (often with a diuretic) to treat hypertension and congestive heart failure Synonyms: Apresoline
hydramnios (noun) an abnormality of pregnancy; accumulation of excess amniotic fluid
hydrangea (noun) any of various deciduous or evergreen shrubs of the genus Hydrangea
hydrant (noun) a faucet for drawing water from a pipe or cask Synonyms: tap, water faucet, water tap
(noun) a discharge pipe with a valve and spout at which water may be drawn from the mains of waterworks
hydrargyrum (noun) a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures Synonyms: Hg, mercury, quicksilver, atomic number 80
hydrarthrosis (noun) inflammation and swelling of a movable joint because of excess synovial fluid
hydrate (noun) any compound that contains water of crystallization
(verb) supply water or liquid to in order to maintain a healthy balance
(verb) become hydrated and combine with water
(verb) cause to be hydrated; add water or moisture to
hydrated (adjective) containing combined water (especially water of crystallization as in a hydrate) Synonyms: hydrous
hydration (noun) the process of combining with water; usually reversible
hydraulic (adjective) moved or operated or effected by liquid (water or oil)
(adjective) of or relating to the study of hydraulics
hydraulically (adverb) in a hydraulic manner Synonyms: hydraulicly
hydraulicly (adverb) in a hydraulic manner Synonyms: hydraulically
hydraulics (noun) study of the mechanics of fluids Synonyms: fluid mechanics
hydrazide (noun) any of a class of organic compounds sharing a common functional group characterized by a nitrogen to nitrogen covalent bond with 4 substituents with at least one of them being an acyl group.
hydrazine (noun) a colorless fuming corrosive liquid; a powerful reducing agent; used chiefly in rocket fuels
hydrazoite (noun) a salt of hydrazoic acid
hydremia (noun) blood disorder in which there is excess fluid volume compared with the cell volume of the blood
hydric (adjective) having or characterized by excessive moisture
hydride (noun) any binary compound formed by the union of hydrogen and other elements
hydrilla (noun) submersed plant with whorled lanceolate leaves and solitary axillary flowers; Old World plant naturalized in southern United States and clogging Florida's waterways Synonyms: Hydrilla verticillata
hydrocarbon (noun) an organic compound containing only carbon and hydrogen
hydrocele (noun) disorder in which serous fluid accumulates in a body sac (especially in the scrotum)
hydrocephalic (adjective) relating to or characterized by or evidencing hydrocephalus
hydrocephalus (noun) an abnormal condition in which cerebrospinal fluid collects in the ventricles of the brain; in infants it can cause abnormally rapid growth of the head and bulging fontanelles and a small face; in adults the symptoms are primarily neurological Synonyms: hydrocephaly
hydrocephaly (noun) an abnormal condition in which cerebrospinal fluid collects in the ventricles of the brain; in infants it can cause abnormally rapid growth of the head and bulging fontanelles and a small face; in adults the symptoms are primarily neurological Synonyms: hydrocephalus
hydrochloride (noun) a complex consisting of an organic base in association with hydrogen chloride
hydrochlorofluorocarbon (noun) a fluorocarbon that is replacing chlorofluorocarbon as a refrigerant and propellant in aerosol cans; considered to be somewhat less destructive to the atmosphere Synonyms: HCFC
hydrochlorothiazide (noun) a diuretic drug (trade name Microzide, Esidrix, and HydroDIURIL) used in the treatment of hypertension Synonyms: HydroDIURIL, Microzide, Esidrix
hydrocolloid (noun) a substance that forms a gel with water
hydrocortisone (noun) an adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism Synonyms: Hydrocortone, Cortef, cortisol
hydrocracking (noun) the process whereby hydrocarbon molecules of petroleum are broken down into kerosene and gasolene by the addition of hydrogen under high pressure in the presence of a catalyst
hydrodynamic (adjective) of or relating to hydrodynamics
hydrodynamics (noun) study of fluids in motion Synonyms: hydrokinetics
hydroelectric (adjective) of or relating to or used in the production of electricity by waterpower
hydroelectricity (noun) electricity produced by water power
hydroflumethiazide (noun) diuretic used to treat hypertension and edema
hydrofluorocarbon (noun) a fluorocarbon emitted as a by-product of industrial manufacturing Synonyms: HFC
hydrofoil (noun) a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through Synonyms: foil
(noun) a speedboat that is equipped with winglike structures that lift it so that it skims the water at high speeds Synonyms: hydroplane
hydrogel (noun) a colloidal gel in which water is the dispersion medium
hydrogen (noun) a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe Synonyms: H, atomic number 1
hydrogenate (verb) combine or treat with or expose to hydrogen; add hydrogen to the molecule of (an unsaturated organic compound)
hydrogenation (noun) a chemical process that adds hydrogen atoms to an unsaturated oil
hydrographic (adjective) of or relating to the science of hydrography Synonyms: hydrographical
hydrographical (adjective) of or relating to the science of hydrography Synonyms: hydrographic
hydrography (noun) the science of the measurement and description and mapping of the surface waters of the earth with special reference to navigation
hydroid (noun) colonial coelenterates having the polyp phase dominant Synonyms: hydrozoan
hydroisohypse (noun) a line on a map connecting points of equal level on the piezometric surface.
hydroisopieze (noun) a line on a map connecting points of identical pressures in the water bearing stratum.
hydrokinetic (adjective) relating to fluids in motion or the forces that produce or affect such motion
hydrokinetics (noun) study of fluids in motion Synonyms: hydrodynamics
hydrolise (verb) make a compound react with water and undergo hydrolysis Synonyms: hydrolize
hydrolith (noun) a saltlike binary compound (CaH2) used as a reducing agent and source of hydrogen Synonyms: calcium hydride
hydrolize (verb) make a compound react with water and undergo hydrolysis Synonyms: hydrolise
hydrologist (noun) a geologist skilled in hydrology
hydrology (noun) the branch of geology that studies water on the earth and in the atmosphere: its distribution and uses and conservation
hydrolysate (noun) a product of hydrolysis
hydrolyse (verb) undergo hydrolysis; decompose by reacting with water Synonyms: hydrolyze
hydrolysis (noun) a chemical reaction in which water reacts with a compound to produce other compounds; involves the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion from the water
hydrolyzable (adjective) capable of undergoing hydrolysis
hydrolyze (verb) undergo hydrolysis; decompose by reacting with water Synonyms: hydrolyse
hydromancer (noun) one who practices hydromancy
hydromancy (noun) divination by water (as by patterns seen in the ebb and flow of the tides)
hydromel (noun) honey diluted in water; becomes mead when fermented
hydrometer (noun) a measuring instrument for determining the specific gravity of a liquid or solid Synonyms: gravimeter
hydrometric (adjective) of or relating to hydrometry Synonyms: gravimetric
hydrometry (noun) the measurement of specific gravity Synonyms: gravimetry
hydromorphone (noun) a narcotic analgesic (trade name Dilaudid) used to treat moderate to severe pain Synonyms: hydromorphone hydrochloride, Dilaudid
hydronephrosis (noun) accumulation of urine in the kidney because of an obstruction in the ureter
hydropathic (adjective) of or relating to hydropathy or its administration
hydropathy (noun) the internal and external use of water in the treatment of disease Synonyms: hydrotherapy
hydrophilic (adjective) having a strong affinity for water; tending to dissolve in, mix with, or be wetted by water
hydrophobia (noun) a symptom of rabies in humans consisting of an aversion to swallowing liquids
(noun) a morbid fear of water
(noun) an acute viral disease of the nervous system of warm-blooded animals (usually transmitted by the bite of a rabid animal); rabies is fatal if the virus reaches the brain Synonyms: madness, rabies, lyssa
hydrophobic (adjective) lacking affinity for water; tending to repel and not absorb water; tending not to dissolve in or mix with or be wetted by water
(adjective) abnormally afraid of water Synonyms: aquaphobic
hydrophobicity (noun) the property of being water-repellent; tending to repel and not absorb water
hydrophyte (noun) a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth Synonyms: hydrophytic plant, water plant, aquatic plant
hydrophytic (adjective) growing wholly or partially in water
hydroplane (verb) glide on the water in a hydroplane Synonyms: seaplane
(noun) an airplane that can land on or take off from water Synonyms: seaplane
(noun) a speedboat that is equipped with winglike structures that lift it so that it skims the water at high speeds Synonyms: hydrofoil
hydroponic (adjective) of or relating to aquiculture Synonyms: aquacultural, aquicultural

© WordFnd.com 2022, CC-BY 4.0 / CC-BY-SA 3.0.