Artemisia frigida ar·te·mi·siafrigida uncommon noun 1. silky-leaved aromatic perennial of dry northern parts of the northern hemisphere; has tawny florets Synonymswormwood sageprairie sagewortArtemisia frigida Related words Broader terms wormwood Parts genus Artemisia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.