| HIPPOPOTAMUSES | • hippopotamuses n. Plural of hippopotamus. • HIPPOPOTAMUS n. a large African artiodactyl ungulate of aquatic habits. |
| PHILADELPHUSES | • philadelphuses n. Plural of philadelphus. • PHILADELPHUS n. a flowering shrub, aka mock orange. |
| PLEURAPOPHYSIS | • pleurapophysis n. A process on a vertebra that is essentially a vertebral rib. • PLEURAPOPHYSIS n. a lateral process of a vertebra, with the morphological character of a rib. |
| PLOUGHMANSHIPS | • PLOUGHMANSHIP n. the craft of a ploughman, also PLOWMANSHIP. |
| POSTULANTSHIPS | • POSTULANTSHIP n. the office of postulant. |
| PROCONSULSHIPS | • proconsulships n. Plural of proconsulship. • PROCONSULSHIP n. the office of proconsul. |
| PSEUDEPIGRAPHS | • pseudepigraphs n. Plural of pseudepigraph. • PSEUDEPIGRAPH n. a book ascribed to Old Testament characters, but not judged genuine by scholars. |
| PSEUDOGRAPHIES | • pseudographies n. Plural of pseudography. • PSEUDOGRAPHY n. unsatisfactory spelling. |
| PSEUDOMORPHISM | • pseudomorphism n. (Crystallography) The state of having, or the property of taking, a crystalline form unlike that of the species. • PSEUDOMORPHISM n. the state of being pseudomorphic. |
| SIPHONOPHOROUS | • siphonophorous adj. Of or relating to the siphonophores. • SIPHONOPHOROUS adj. of or like a siphonophore, a type of colonial hydrozoan. |
| SPATHIPHYLLUMS | • spathiphyllums n. Plural of spathiphyllum. • SPATHIPHYLLUM n. any tropical plant of the genus Spathiphyllum, having lance-shaped leaves and fleshy white spadices of flowers in white spathes. |
| SUNWORSHIPPERS | • sun-worshippers n. Plural of sun-worshipper. • sun␣worshippers n. Plural of sun worshipper. • SUNWORSHIPPER n. one who worships the sun. |
| SUPERCARGOSHIP | • supercargoship n. The role or status of supercargo. • SUPERCARGOSHIP n. the office of supercargo. |
| SUPERVISORSHIP | • supervisorship n. The post or office of supervisor. • SUPERVISORSHIP n. the office of supervisor. |