hydremia
- n blood disorder in which there is excess fluid volume compared with the cell volume of the blood
hyazyme
- n 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
hybanthus
- n a genus of herbs and small shrubs with white or purple flowers; grows in tropical or subtropical regions
hybrid petunia
- n hybrids of Petunia axillaris and Petunia integrifolia: a complex group of petunias having single or double flowers in colors from white to purple
hybrid tuberous begonia
- n any of numerous hybrid begonias having tuberous roots and variously colored flowers
hybrid vigor
- n (genetics) the tendency of a crossbred organism to have qualities superior to those of either parent
hybridisation
- n (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids
hybridization
- n (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids
hybridizing
- n (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids
- v breed animals or plants using parents of different races and varieties
hybridoma
- n a hybrid cell resulting from the fusion of a lymphocyte and a tumor cell; used to culture a specific monoclonal antibody
hydantoin
- n any of a group of anticonvulsant drugs used in treating epilepsy
hydathode
- n a pore that exudes water on the surface or margin of a leaf of higher plants
hydatid
- n cyst filled with liquid; forms as a result of infestation by tapeworm larvae (as in echinococcosis)
hydatid mole
- n an abnormality during pregnancy; chorionic villi around the fetus degenerate and form clusters of fluid-filled sacs; usually associated with the death of the fetus
hydatidiform mole
- n an abnormality during pregnancy; chorionic villi around the fetus degenerate and form clusters of fluid-filled sacs; usually associated with the death of the fetus