/ Thesaurus / F Synonyms of fourier series Find synonyms for: Noun1. Fourier series, seriesusage: the sum of a series of trigonometric expressions; used in the analysis of periodic functionsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language