| DIPHYSITISMS | • DIPHYSITISM n. belief in the dual nature of Christ. |
| PANPSYCHISMS | • panpsychisms n. Plural of panpsychism. • PANPSYCHISM n. the theory that all nature has a psychic side. |
| PHOTOSYSTEMS | • photosystems n. Plural of photosystem. • PHOTOSYSTEM n. either of two photochemical reaction centers consisting chiefly of photosynthetic pigments complexed with protein and occurring in chloroplasts. |
| PHYSICALISMS | • physicalisms n. Plural of physicalism. • PHYSICALISM n. the belief that all phenomena reducible to verifiable assertions. |
| PHYSITHEISMS | • PHYSITHEISM n. the ascription of physical form and attributes to deity; the deification of the powers of nature. |
| PHYSOSTOMOUS | • physostomous adj. (Zoology) Having a duct to the air bladder. • physostomous adj. (Zoology) Relating to the Physostomi. • PHYSOSTOMOUS adj. of fishes, having a duct connecting the air bladder to part of the alimentary canal. |
| POLYMASTISMS | • POLYMASTISM n. the presence of supernumerary breasts or nipples, also POLYMASTIA, POLYMASTY. |
| PROSELYTISMS | • proselytisms n. Plural of proselytism. • PROSELYTISM n. conversion. |
| SCYPHISTOMAS | • scyphistomas n. Plural of scyphistoma. • SCYPHISTOMA n. the fixed polypoid stage in the life cycle of a scyphozoan, which reproduces asexually by budding or strobilation. |
| SPASMOLYTICS | • spasmolytics n. Plural of spasmolytic. • SPASMOLYTIC n. a spasmolytic drug. |
| SUPERSYSTEMS | • supersystems n. Plural of supersystem. • SUPERSYSTEM n. a system that is made up of systems. |
| SYMPATHISERS | • sympathisers n. Plural of sympathiser. • SYMPATHISER n. one who sympathises, also SYMPATHIZER. |
| SYMPOSIARCHS | • symposiarchs n. Plural of symposiarch. • SYMPOSIARCH n. the master, director, etc. of a feast or conference. |
| SYNAPTOSOMES | • synaptosomes n. Plural of synaptosome. • SYNAPTOSOME n. a nerve ending that is isolated from homogenized nerve tissue. |