/ Thesaurus / R Synonyms of regression equation Find synonyms for: Noun1. regression equation, regression of y on x, equationusage: the equation representing the relation between selected values of one variable (x) and observed values of the other (y); it permits the prediction of the most probable values of yWordNet 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