| APOENZYMES | • apoenzymes n. Plural of apoenzyme. • APOENZYME n. a protein component which combines with a coenzyme. | 
| COPAYMENTS | • copayments n. Plural of copayment. • COPAYMENT n. a joint payment. | 
| CYMOPHANES | • cymophanes n. Plural of cymophane. • CYMOPHANE n. cat's-eye, a variety of chrysoberyl with wavy opalescence. | 
| ENDOLYMPHS | • endolymphs n. Plural of endolymph. • ENDOLYMPH n. the watery fluid contained in the membranous labyrinth of the internal ear. | 
| GYMNOSPERM | • gymnosperm n. (Botany) Any plant such as a conifer whose seeds are not enclosed in an ovary. • GYMNOSPERM n. a plant with the ovules borne naked or unprotected, the conifers or cone-bearing plants and their allies. | 
| HYPONYMIES | • hyponymies n. Plural of hyponymy. • HYPONYMY n. the formation of hyponyms. | 
| MONKEYPODS | • monkeypods n. Plural of monkeypod. • MONKEYPOD n. the rain-tree. | 
| MONKEYPOTS | • monkeypots n. Plural of monkeypot. • monkey␣pots n. Plural of monkey pot. • MONKEYPOT n. the round-lidded outer shell of the sapucaia nut. | 
| PADYMELONS | • padymelons n. Plural of padymelon. • PADYMELON n. (Native Australian) any of several small wallabies, also PADDYMELON, PADEMELON. | 
| PARONYMIES | • paronymies n. Plural of paronymy. • PARONYMY n. a relationship of two words having the same sound. | 
| POLYAMINES | • polyamines n. Plural of polyamine. • POLYAMINE n. a compound characterized by more than one amino group. | 
| POLYGENISM | • polygenism n. (Ethnology) The belief that humans descended from more than one ancestral pair. • POLYGENISM n. the doctrine that animals of the same species have sprung from more than one original pair. | 
| POLYSEMANT | • polysemant n. A word or phrase with more than one meaning. • POLYSEMANT n. a word with many meanings. | 
| PROENZYMES | • proenzymes n. Plural of proenzyme. • PROENZYME n. an enzyme in an inactive form which can be activated, often by another enzyme. | 
| PSEUDONYMS | • pseudonyms n. Plural of pseudonym. • PSEUDONYM n. a fictitious name assumed for the time, as by an author. | 
| PYCNOSOMES | • pycnosomes n. Plural of pycnosome. • PYCNOSOME n. a body type characterized by stockiness. | 
| PYKNOSOMES | • pyknosomes n. Plural of pyknosome. • PYKNOSOME n. the short or stocky type of human figure. | 
| SYMPHONIES | • symphonies n. Plural of symphony. • SYMPHONY n. an orchestral composition. | 
| TOPONYMIES | • toponymies n. Plural of toponymy. • TOPONYMY n. the study of toponyms. |