/ Thesaurus / P Synonyms of phrenic vein Find synonyms for: Noun1. phrenic vein, vena phrenica, vein, vena, venous blood vesselusage: either of two veins that drain the diaphragmWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language