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