(n) genus of black-spotted agarics in which the cap breaks down at maturity into an inky fluid; sometimes placed in its own family Coprinaceae, Syn. genus Coprinus
Copying ink. See under Ink. -- Copying paper, thin unsized paper used for taking copies of letters, etc., in a copying press. -- Copying press, a machine for taking by pressure, an exact copy of letters, etc., written in copying ink. [ 1913 Webster ]