| COPYEDITORS | • copyeditors n. Plural of copyeditor. • copy␣editors n. Plural of copy editor. |
| COPYHOLDERS | • copyholders n. Plural of copyholder. • COPYHOLDER n. one possessed of land in copyhold. |
| HYDROPHONES | • hydrophones n. Plural of hydrophone. • HYDROPHONE n. an apparatus for listening to sounds conveyed by water. |
| 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. |
| MYRIAPODOUS | • MYRIAPODOUS adj. like a myriapod. |
| POLYANDROUS | • polyandrous adj. Of or pertaining to polyandry; engaging in polyandry. • polyandrous adj. (Botany) Belonging to the class Polyandria; having many stamens inserted in the receptacle. • POLYANDROUS adj. relating to polyandry. |
| POLYHEDRONS | • polyhedrons n. Plural of polyhedron. • POLYHEDRON n. a body or solid contained by many sides or planes. |
| PONDEROSITY | • ponderosity n. The quality of requiring extensive thought. • ponderosity n. (Obsolete) Weight; heaviness. • PONDEROSITY n. the state of being ponderous. |
| PONDEROUSLY | • ponderously adv. In a ponderous manner; very slowly. • ponderously adv. With the appearance of great weight. • PONDEROUS adv. heavy and slow. |
| PORPHYROIDS | • porphyroids n. Plural of porphyroid. • PORPHYROID n. a metamorphic rock having a texture characterized by large crystals set in a finer groundmass. |
| PROTEOLYSED | • proteolysed adj. Subject to, or obtained via proteolysis. • proteolysed v. Simple past tense and past participle of proteolyse. • PROTEOLYSE v. to split proteins by proteolysis. |
| PYROXENOIDS | • pyroxenoids n. Plural of pyroxenoid. • PYROXENOID n. a mineral like pyroxene, a common mineral occurring in monoclinic crystals. |