(medicine) A form of prevention, usually medication, taken after exposure (or probable exposure) to a pathogen, preventing development of disease after such exposure; especially, as against HIV.

plural of post-exposure prophylaxis

(linguistics) A situation wherein a creole language consists of a spectrum of varieties between those most and least similar to the superstrate language.

letters placed after a person's name to indicate that that the individual holds an academic degree, accreditation, office, military decoration, or honour, or that the individual is a member of a religious institute or fraternity

Any of a group of seventy species of woodboring beetles classified in the insect subfamily Lyctinae.

(medicine) A syndrome where the effects of a concussion extend well beyond the normal time period.

A uniquely addressable lockable box located on the premises of a post office that may be hired as collection point for mail. / (electricity) A test instrument once used by telephone engineers.

plural of inquisition post mortem

A voting system where the candidate with the most votes (a plurality) wins, without any form of preference transfer.

(idiomatic) To inform (someone) regularly of the latest developments.