Akademik

an alphabetical listing of items (e.g., books in a library) with a separate card for each item

noun, pl ⋯ -dexes [count]

chiefly Brit : a set of cards that have information written on them and are arranged in alphabetical order; especially : ↑card catalog

ˈcard index [card index card indexes] (also index) (both BrE) (NAmE ˈcard catalog) noun

a box of cards with information on them, arranged in alphabetical order

See also: ↑card catalog ▪ ↑index