from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A perennial herb (Caulophyllum thalictroides) of eastern North America, having a ternately compound leaf, small yellow-green or purplish flowers, and blue berrylike seeds.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A perennial American herb (Caulophyllum thalictroides), whose rootstock is used in medicine.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally
blue + cohosh (Wiktionary)