| ANTIPROTON | • antiproton n. (Physics) The antiparticle of the proton, having a negative electric charge. • ANTIPROTON n. the antiparticle of a proton. |
| COUNTERTOP | • countertop n. The top surface of a counter, for preparation of food etc. • COUNTERTOP n. the top of a counter. |
| ENTOPROCTS | • entoprocts n. Plural of entoproct. • ENTOPROCT n. any of a phylum of animals related to Bryozoans. |
| FOOTPRINTS | • footprints n. Plural of footprint. • FOOTPRINT n. the mark left on the ground or floor by a person's or animal's foot. |
| INTERTROOP | • intertroop adj. Between troops. • INTERTROOP adj. taking place between troops. |
| OVERPOTENT | • overpotent adj. Too potent or powerful. • OVERPOTENT adj. too potent or powerful. |
| PANZEROTTO | • panzerotto n. A type of large ravioli made from pizza dough, filled with various ingredients such as ricotta (or mozzarella)… • PANZEROTTO n. (Canadian) a baked turnover with a folded, sealed pocket containing tomato, cheese, and sometimes other fillings. |
| PHYTOTRONS | • phytotrons n. Plural of phytotron. • PHYTOTRON n. an apparatus that produces climates artificially for the study of plant growth. |
| PORTAMENTO | • portamento n. (Music) A smooth, gliding transition from one note to another; used especially with stringed instruments… • PORTAMENTO n. (Italian) in singing, or in the use of the bow, a gradual carrying or lifting of the voice or sound very smoothly from one note to another. |
| PORTENTOUS | • portentous adj. Of momentous or ominous significance. • portentous adj. Ominously prophetic. • portentous adj. Puffed up with vanity. |
| PORTIONIST | • portionist n. One of the incumbents of a benefice that has two or more rectors or vicars. • portionist n. (Historical) A scholar at Merton College, Oxford, England, who has a certain academical allowance or portion. • PORTIONIST n. a postmaster of Merton College; one of two or more incumbents sharing a benefice. |
| PROTECTION | • protection n. The process of keeping (something or someone) safe. • protection n. The state of being safe. • protection n. A means of keeping or remaining safe. |
| PROTONATED | • protonated v. Simple past tense and past participle of protonate. • PROTONATE v. to acquire an additional proton. |
| PROTONATES | • protonates v. Third-person singular simple present indicative form of protonate. • PROTONATE v. to acquire an additional proton. |
| TOPNOTCHER | • topnotcher n. (Philippines) Alternative form of top-notcher. • top-notcher n. (Colloquial) Something excellent or first-rate. • TOPNOTCHER n. crude oil after some of its lighter constituents have been removed by distillation. |