| DIPHYODONTS | • diphyodonts n. Plural of diphyodont. • DIPHYODONT n. a mammal having a second set of teeth that replaces the first. |
| GLYPTODONTS | • glyptodonts n. Plural of glyptodont. • GLYPTODONT n. any of a family of extinct South American edentates. |
| HYDROPHONES | • hydrophones n. Plural of hydrophone. • HYDROPHONE n. an apparatus for listening to sounds conveyed by water. |
| 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. |
| PODOPHYLINS | • PODOPHYLIN n. a cathartic resin obtained from the rhizomes of the Podophyllum genus, also PODOPHYLLIN. |
| 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. |
| PYCNOGONIDS | • pycnogonids n. Plural of pycnogonid. • PYCNOGONID n. one of the Pycnogonida, sea-spiders. |
| PYROXENOIDS | • pyroxenoids n. Plural of pyroxenoid. • PYROXENOID n. a mineral like pyroxene, a common mineral occurring in monoclinic crystals. |
| SPONDYLOSES | • spondyloses n. Plural of spondylosis. • SPONDYLOSIS n. disintegration of one or more vertebrae. |
| SPONDYLOSIS | • spondylosis n. (Medicine) A degenerative disease in which the vertebral joints of the spine become stiff and then fused. • SPONDYLOSIS n. disintegration of one or more vertebrae. |