/ Thesaurus / H Synonyms of heliocentric parallax Find synonyms for: Noun1. heliocentric parallax, annual parallax, parallaxusage: the parallax of a celestial body using two points in the earth's orbit around the sun as the baselineWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language