Dictionary.com

Popular Searches

 Thesaurus.com

unit card

American  

noun

Library Science.

  1. a main entry catalog card, duplicates of which are used for added entries.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.