| COPYHOLDERS | • copyholders n. Plural of copyholder. • COPYHOLDER n. one possessed of land in copyhold. |
| HYDROPHOBIA | • hydrophobia n. (Pathology) An aversion to water, as a symptom of rabies; the disease of rabies itself. • hydrophobia n. (Psychology, colloquial) A morbid fear of water; aquaphobia. • HYDROPHOBIA n. the morbid fear of water, as in rabies victims. |
| HYDROPHOBIC | • hydrophobic adj. Of, or having, hydrophobia (rabies). • hydrophobic adj. (Physics, chemistry) Lacking an affinity for water; unable to absorb or to be wetted by water. • HYDROPHOBIC adj. having a morbid fear of water. |
| HYDROPHONES | • hydrophones n. Plural of hydrophone. • HYDROPHONE n. an apparatus for listening to sounds conveyed by water. |
| HYDROPHYTON | • hydrophyton n. (Biology) A branched structure that supports the zooids in colonial hydrozoa. • HYDROPHYTON n. the coenosarc of a hydroid colony. |
| HYDROPOLYPS | • hydropolyps n. Plural of hydropolyp. • HYDROPOLYP n. a hydrozoan polyp. |
| HYDROPONICS | • hydroponics n. The cultivation of plants in a nutrient solution rather than in the soil. • HYDROPONICS n. the practice of growing plants in a chemical solution without soil. |
| HYDROPOWERS | • HYDROPOWER n. water power. |
| HYDROSCOPES | • hydroscopes n. Plural of hydroscope. • HYDROSCOPE n. an instrument for viewing under water. |
| HYDROSCOPIC | • hydroscopic n. Misspelling of hygroscopic. • HYDROSCOPIC adj. relating to a hydroscope, also HYDROSCOPICAL. |
| HYDROTROPIC | • hydrotropic adj. (Biology) exhibiting hydrotropism. • HYDROTROPIC adj. exhibiting hydrotropism, i.e. growth in the direction of water. |
| HYPERBOLOID | • hyperboloid n. A particular surface in three-dimensional Euclidean space, the graph of a quadratic with all three variables… • HYPERBOLOID n. a solid figure in which some of the plane sections are hyperbolas. |
| HYPOTHYROID | • hypothyroid adj. Of or pertaining to hypothyroidism. • hypothyroid adj. Having hypothyroidism. • HYPOTHYROID adj. affected with hypothyroidism. |
| PAEDOTROPHY | • paedotrophy n. Alternative form of pedotrophy. • PAEDOTROPHY n. the art of rearing children. |
| POLYCHROMED | • polychromed adj. Strikingly multicolored, as if by polychromy. • POLYCHROME v. to colour in many colours. |
| POLYHEDRONS | • polyhedrons n. Plural of polyhedron. • POLYHEDRON n. a body or solid contained by many sides or planes. |
| POLYHYDROXY | • polyhydroxy adj. (Organic chemistry) Having three or more hydroxy functional groups. • POLYHYDROXY adj. containing more than one hydroxyl group in the molecule. |
| PORPHYROIDS | • porphyroids n. Plural of porphyroid. • PORPHYROID n. a metamorphic rock having a texture characterized by large crystals set in a finer groundmass. |
| QUADROPHONY | • QUADROPHONY n. a system of sound transmission using four speakers, also QUADRAPHONICS, QUADRAPHONY, QUADRIPHONICS, QUADROPHONICS. |