| COPYEDITORS | • copyeditors n. Plural of copyeditor. • copy␣editors n. Plural of copy editor. |
| DIPHYODONTS | • diphyodonts n. Plural of diphyodont. • DIPHYODONT n. a mammal having a second set of teeth that replaces the first. |
| 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. |
| HYDROSCOPIC | • hydroscopic n. Misspelling of hygroscopic. • HYDROSCOPIC adj. relating to a hydroscope, also HYDROSCOPICAL. |
| LYCOPODIUMS | • lycopodiums n. Plural of lycopodium. • LYCOPODIUM n. a genus of mosslike plants, aka clubmoss. |
| MYRIAPODOUS | • MYRIAPODOUS adj. like a myriapod. |
| PODOPHYLINS | • PODOPHYLIN n. a cathartic resin obtained from the rhizomes of the Podophyllum genus, also PODOPHYLLIN. |
| PONDEROSITY | • ponderosity n. The quality of requiring extensive thought. • ponderosity n. (Obsolete) Weight; heaviness. • PONDEROSITY n. the state of being ponderous. |
| PORPHYROIDS | • porphyroids n. Plural of porphyroid. • PORPHYROID n. a metamorphic rock having a texture characterized by large crystals set in a finer groundmass. |
| POSTHOLIDAY | • postholiday adj. Occurring after, or as a consequence of, a holiday; often specifically after the holiday season of late December. • POSTHOLIDAY adj. taking place after a holiday. |
| 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. |
| 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. |
| STYLOPODIUM | • stylopodium n. (Botany) An expansion at the base of the style, as in umbelliferous plants. • STYLOPODIUM n. an enlargement at the end of the style base of certain flowers. |