| AFTERSUPPER | • AFTERSUPPER n. the time between supper and bedtime. |
| PERSULFATES | • persulfates n. Plural of persulfate. • PERSULFATE n. a sulphuric acid salt of a base peroxide, also PERSULPHATE. |
| PESTIFEROUS | • pestiferous adj. Containing organisms that cause contagious diseases. • pestiferous adj. Annoying, vexatious. • PESTIFEROUS adj. bringing plague or pestilence. |
| PLUPERFECTS | • pluperfects n. Plural of pluperfect. • PLUPERFECT n. a tense denoting completion of action before a certain point in past time. |
| PREFECTURES | • prefectures n. Plural of prefecture. • PREFECTURE n. the office, position, or jurisdiction of a prefect; also, his official residence. |
| PREFIXTURES | • PREFIXTURE n. the act of prefixing. |
| PRESTIGEFUL | • prestigeful adj. Respected, admired. • PRESTIGEFUL adj. full of prestige. |
| SEPTIFEROUS | • septiferous adj. (Botany) Bearing a partition; said of the valves of a capsule. • septiferous adj. (Obsolete) Conveying putrid poison. • SEPTIFEROUS adj. having barriers. |
| SPITEFULLER | • spitefuller adj. Comparative form of spiteful: more spiteful. • SPITEFUL adj. malicious. |
| SUBPREFECTS | • subprefects n. Plural of subprefect. • SUBPREFECT n. one ranking below a prefect. |
| SUPERFATTED | • superfatted adj. Having been subjected to a superfatting treatment. • SUPERFATTED adj. of soap, having an excess of fat, so that there is no free alkali. |
| SUPERFECTAS | • superfectas n. Plural of superfecta. • SUPERFECTA n. a bet in which the bettor must pick the first four winners of a race in the correct order. |
| SUPERFETATE | • superfetate v. To conceive after a prior conception, but before the birth of the offspring. • SUPERFETATE v. to conceive when a fetus is already in the uterus. |
| SUPERINFECT | • superinfect v. To infect as a superinfection. • SUPERINFECT v. to infect with a superinfection. |
| SUPERSAFETY | • supersafety n. The state or condition of being supersafe; exceptional safety. • SUPERSAFETY n. the state of being supersafe. |