| APOLOGISTS | • apologists n. Plural of apologist. • APOLOGIST n. a defender by argument. |
| APOSTOLISE | • apostolise v. Alternative form of apostolize. • APOSTOLISE v. to preach, also APOSTOLIZE. |
| BLASTOPORS | • BLASTOPOR n. the opening of the archenteron in the gastrula that develops into the anus of some animals, also BLASTOPORE. |
| CAMPSTOOLS | • campstools n. Plural of campstool. • camp␣stools n. Plural of camp stool. • CAMPSTOOL n. a small canvas stool for outdoor use. |
| DUOPOLISTS | • duopolists n. Plural of duopolist. • DUOPOLIST n. a member of a duopoly, a situation in which two companies etc are the only suppliers in a particular market. |
| LEPTOSOMES | • leptosomes n. Plural of leptosome. • LEPTOSOME n. a person with a slight or slender build. |
| PHOTOLYSES | • photolyses n. Plural of photolysis. • photolyses v. Third-person singular simple present indicative form of photolyse. • PHOTOLYSE v. to cause photolysis in, also PHOTOLYZE. |
| PHOTOLYSIS | • photolysis n. (Chemistry) Any chemical reaction in which a compound is decomposed after absorbing a photon. • PHOTOLYSIS n. decomposition or dissociation of molecules by the action of light; an instance of this. |
| PISTOLEROS | • PISTOLERO n. one who uses a pistol, also PISTOLEER, PISTOLIER. |
| POSTILIONS | • postilions n. Plural of postilion. • POSTILION n. (historical) a person who rides the near horse of those drawing a coach etc. and acts as guide to the whole team, also POSTILLION. |
| PROLOGISTS | • prologists n. Plural of prologist. • PROLOGIST n. a writer of prologues. |
| SPOILSPORT | • spoilsport n. Someone who puts an end to others’ fun, especially harmless fun. • spoilsport adj. Like a spoilsport. • spoil-sport n. (Dated) Alternative form of spoilsport. |
| SPOLIATORS | • spoliators n. Plural of spoliator. • SPOLIATOR n. one who spoliates. |
| STEPSTOOLS | • stepstools n. Plural of stepstool. • step␣stools n. Plural of step stool. • STEPSTOOL n. a stool able to be used as a step. |
| STOOPBALLS | • STOOPBALL n. a variation of baseball. |
| TONOPLASTS | • tonoplasts n. Plural of tonoplast. • TONOPLAST n. a semipermeable membrane surrounding a plant vacuole. |
| TOOLPUSHES | • TOOLPUSH n. a worker who directs the drilling on an oil rig. |