| DROPWORTS | • dropworts n. Plural of dropwort. • DROPWORT n. a wild flower, a species of Spiraea. |
| HOROPTERS | • horopters n. Plural of horopter. • HOROPTER n. a set of points which have the same visual angle. |
| OPERATORS | • operators n. Plural of operator. • OPERATOR n. one who operates. |
| OUTROPERS | • outropers n. Plural of outroper. • OUTROPER n. (obsolete) an auctioneer; the Common Crier of the City, also OUTROOPER. |
| POSTERIOR | • posterior adj. (Anatomy) Nearer the rear or hind end; nearer the caudal end of the body in quadrupeds or the dorsal end in bipeds. • posterior adj. (Formal) Following in order or in time. • posterior n. (Euphemistic, humorous) The hinder parts of the body. |
| PREPOSTOR | • prepostor n. Alternative form of prepositor. • PREPOSTOR n. (Latin) the name used for a prefect in some English public schools, also PRAEPOSTOR, PREPOSITOR. |
| PRODITORS | • proditors n. Plural of proditor. • PRODITOR n. (Latin) a traitor. |
| PROMOTERS | • promoters n. Plural of promoter. • PROMOTER n. one who promotes. |
| PROMOTORS | • promotors n. Plural of promotor. • PROMOTOR n. a person who presents candidates for graduation. |
| PRONATORS | • pronators n. Plural of pronator. • PRONATOR n. a forearm or forelimb muscle. |
| PROSECTOR | • prosector n. A person who prepares a body for dissection by students, or dissects them as demonstrations. • PROSECTOR n. one who dissects bodies in anatomical lectures. |
| PROTESTOR | • protestor n. Alternative spelling of protester. • PROTESTOR n. one who protests, also PROTESTER. |
| PROTOSTAR | • protostar n. (Astronomy) A collection of gas and dust in space with high temperature that usually grows to the point… • PROTOSTAR n. a condensing mass of gas in the early formation of a star. |
| PROVOSTRY | • provostry n. A district under a provost. • PROVOSTRY n. the office of provost, the head of certain universities and colleges. |
| REPOSITOR | • repositor n. (Surgery) An instrument used to reposition a displaced organ. • REPOSITOR n. an instrument employed for replacing a displaced organ or part. |
| RUSTPROOF | • rustproof adj. Resistant to rust, oxidation and corrosion. • rustproof adj. Resistant to the rust fungus. • rustproof v. To make resistant to rust, such as by applying a coating. |
| TRAPDOORS | • trapdoors n. Plural of trapdoor. • trap␣doors n. Plural of trap door. • TRAPDOOR n. a door set in a floor or ceiling, flush with the surface. |
| UPROOTERS | • uprooters n. Plural of uprooter. • UPROOTER n. one who uproots. |