/ Thesaurus / A Synonyms of arithmetic operation Find synonyms for: Noun1. arithmetic operation, mathematical process, mathematical operation, operationusage: a mathematical operation involving numbersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language