| BABYPROOFED | • babyproofed adj. Made babyproof. • BABYPROOF v. to render e.g. a room safe for babies. |
| 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. |
| DIOPTOMETRY | • DIOPTOMETRY n. the measurement of ocular refraction. |
| HYDROPHONES | • hydrophones n. Plural of hydrophone. • HYDROPHONE n. an apparatus for listening to sounds conveyed by water. |
| HYDROPOWERS | • HYDROPOWER n. water power. |
| HYDROSCOPES | • hydroscopes n. Plural of hydroscope. • HYDROSCOPE n. an instrument for viewing under 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. |
| PAEDOTROPHY | • paedotrophy n. Alternative form of pedotrophy. • PAEDOTROPHY n. the art of rearing children. |
| PARLEYVOOED | • parleyvooed v. Simple past tense and past participle of parleyvoo. • PARLEYVOO v. (slang) to speak French. |
| 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. |
| 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. |
| 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. |
| PTERIDOLOGY | • pteridology n. (Botany) The scientific study of ferns and other pteridophytes. • PTERIDOLOGY n. the study of ferns. |
| PYROXENOIDS | • pyroxenoids n. Plural of pyroxenoid. • PYROXENOID n. a mineral like pyroxene, a common mineral occurring in monoclinic crystals. |