/ Thesaurus / O Synonyms of optic cup Find synonyms for: Noun1. optic cup, eyecup, calyculus, caliculus, calycleusage: (embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retinaWordNet 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