/ Thesaurus / S Synonyms of superposition principle Find synonyms for: Noun1. principle of superposition, superposition principle, superposition, principle, ruleusage: (geology) the principle that in a series of stratified sedimentary rocks the lowest stratum is the oldestWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: kiln Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language