| EURYPTERIDS | • eurypterids n. Plural of eurypterid. • EURYPTERID n. any of an order of large extinct aquatic Paleozoic arthropods related to the horseshoe crab. |
| FLUOROTYPES | • fluorotypes n. Plural of fluorotype. • FLUOROTYPE n. (obsolete) photography by means of fluorides. |
| PERSECUTORY | • persecutory adj. Of or relating to persecution. • PERSECUTORY adj. having the nature of persecution, also PERSECUTIVE. |
| PERSPICUITY | • perspicuity n. Clarity, lucidity, especially in expression; the state or characteristic of being perspicuous. • perspicuity n. Perspicacity; insight. • perspicuity n. (Rare) Transparency; translucence. |
| POLYESTROUS | • polyestrous adj. (Biology) Having multiple periods of estrus in a year, or during a breeding season. • POLYESTROUS adj. having more than one period of estrus in a year. |
| POSTPUBERTY | • postpuberty adj. After puberty. • POSTPUBERTY n. the period after puberty. |
| PUSSYFOOTER | • pussyfooter n. One who pussyfoots. • PUSSYFOOTER n. one who pussyfoots. |
| PYROLUSITES | • pyrolusites n. Plural of pyrolusite. • PYROLUSITE n. native manganese dioxide, a black or dark-grey tetragonal mineral with a metallic lustre. |
| PYROSULFITE | • pyrosulfite n. (Inorganic chemistry) metabisulfite. • PYROSULFITE n. as in sodium pyrosulfite, an inorganic compound used as a preservative, antioxidant and disinfectant. |
| SPECULARITY | • specularity n. The condition of being specular, or the degree to which something is specular. • SPECULARITY n. the state of being specular. |
| SPECULATORY | • speculatory adj. Intended or adapted for viewing or espying; having oversight. • speculatory adj. Exercising speculation; speculative. • SPECULATORY adj. exercising speculation; adapted for spying or viewing. |
| SPRITEFULLY | • SPRITEFUL adv. impish. |
| SUPERDAINTY | • superdainty adj. (Rare) Very dainty. • SUPERDAINTY adj. extremely dainty. |
| SUPERFLUITY | • superfluity n. The quality or state of being superfluous; overflowingness. • superfluity n. Something superfluous, as a luxury. • superfluity n. (Rare) Collective noun for a group of nuns. |
| SUPERIORITY | • superiority n. The state of being superior. • superiority n. (Scotland, law, historical) The right which the superior enjoys in the land held by the vassal. • SUPERIORITY n. the state of being superior. |
| SUPERSAFETY | • supersafety n. The state or condition of being supersafe; exceptional safety. • SUPERSAFETY n. the state of being supersafe. |
| SUPERSYSTEM | • supersystem n. A system comprising several subsystems. • SUPERSYSTEM n. a system that is made up of systems. |
| SURETYSHIPS | • suretyships n. Plural of suretyship. • SURETYSHIP n. the state of being surety. |