| IMPERATORSHIP | • IMPERATORSHIP n. the office of imperator. |
| IMPROPRIETIES | • improprieties n. Plural of impropriety. • IMPROPRIETY n. an improper or indecorous act or remark. |
| MORPHOTROPIES | • MORPHOTROPY n. the effect on crystalline form of the addition or substitution of an element or radical. |
| PARAMORPHINES | • PARAMORPHINE n. a poisonous white crystalline alkaloid, extracted from opium and used in medicine, aka thebaine. |
| PERIMORPHISMS | • PERIMORPHISM n. the state of being a perimorph. |
| PREAMPLIFIERS | • preamplifiers n. Plural of preamplifier. • PREAMPLIFIER n. an amplifier designed to amplify extremely weak electrical signals before they are fed to additional amplifier circuits. |
| PRIMIPARITIES | • PRIMIPARITY n. the bearing of one's first child. |
| PTERIDOSPERMS | • pteridosperms n. Plural of pteridosperm. • PTERIDOSPERM n. an extinct group of seed plants which bore fernlike leaves. |
| PYROMORPHITES | • pyromorphites n. Plural of pyromorphite. • PYROMORPHITE n. a green, brown, or yellow lead ore. |
| SPERMATOPHORE | • spermatophore n. (Biology) A spermospore. • spermatophore n. (Zoology) A capsule or pocket enclosing a number of spermatozoa, found in many annelids, brachiopods… • SPERMATOPHORE n. a case enclosing the spermatozoa of certain crustaceans, molluscs and amphibians. |
| STRIPPERGRAMS | • strippergrams n. Plural of strippergram. • STRIPPERGRAM n. a message delivered by a messenger who performs a striptease act for the recipient, also STRIPAGRAM, STRIPOGRAM, STRIPPAGRAM. |
| SUPERCOMPUTER | • supercomputer n. (Computing) Any computer that has a far greater processing power than others of its generation; typically… • SUPERCOMPUTER n. a large very fast mainframe used esp. for scientific computations. |
| SUPERPOLYMERS | • superpolymers n. Plural of superpolymer. • SUPERPOLYMER n. a superior polymer. |
| SUPERPREMIUMS | • superpremiums n. Plural of superpremium. • SUPERPREMIUM n. a very large premium. |
| SUPRATEMPORAL | • supratemporal adj. (Anatomy) Above the temporal lobe. • supratemporal adj. (Philosophy) That transcends time. • supratemporal n. (Anatomy) A supratemporal bone. |
| TELEPROMPTERS | • teleprompters n. Plural of teleprompter. |