Noun[edit] malapropism â(plural malapropisms) (uncountable) The blundering use of an absurdly inappropriate word or expression in place of a similar-sounding one.
Definition of positron. : a positively charged particle having the same mass and magnitude of charge as the electron and constituting the antiparticle of the electron âcalled also antielectron.
â¢ POSIT (noun). The noun POSIT has 1 sense: 1. (logic) a proposition that is accepted as true in order to provide a basis for logical reasoning. Familiarity information: POSIT used as a noun is very rare.