western yew wes·ter·nyew uncommon noun 1. small or medium irregularly branched tree of the Pacific coast of North America; yields fine hard close-grained wood SynonymsPacific yewCalifornia yewwestern yewTaxus brevifolia Related words Broader terms yew Parts Taxus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.