flashcard

or flash card

[ flash-kahrd ]
/ ˈflæʃˌkɑrd /

noun

a card having words, numerals, or pictures on it, designed for gaining a rapid response from pupils when held up briefly by a teacher, used especially in reading, arithmetic, or vocabulary drills.

Origin of flashcard

First recorded in 1920–25; flash + card1

British Dictionary definitions for flash card

flash card

noun

a card on which are written or printed words for children to look at briefly, used as an aid to learning