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entity-relationship diagram

American  
[en-ti-tee-ri-ley-shuhn-ship dahy-uh-gram] / ˈɛn tɪ ti rɪˈleɪ ʃən ʃɪp ˌdaɪ ə græm /
Sometimes Entity-Relationship Diagram

Or entity relationship diagram

noun

  1. a type of graphical representation showing the connections and relationships between people, objects, or concepts within a system or database: used as a data modeling technique and in designing relational databases. ERD.

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.