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trademark registered 1924 by Johnson & Johnson for a stick-on gauze pad or strip. See band (n.1) + aid (n.). The British equivalent was Elastoplast. Figurative sense of "temporary or makeshift solution to a problem, pallative" (often lower case, sometimes bandaid) is first recorded 1968; as an adjective, from 1970.
A trademark used for an adhesive bandage with a gauze pad in the center, employed to protect minor wounds.
: a Band-Aid expedientnoun
A temporary or stopgap remedy: All they did to rectify the problem was to put a Band-Aid on it
[1960s+; fr Band-Aid, trademark for a brand of small adhesive bandages]