index card

noun

a card, often relatively small, as 3 × 5 inches (7.6 × 12.7 cm), used in noting or recording information and usually filed in an index.

Origin of index card

First recorded in 1925–30

Words nearby index card

indeterminate sentence, indeterminate vowel, indetermination, indeterminism, index, index card, index case, index crime, index expurgatorius, index extensor muscle, index finger