WordReference Random House Unabridged Dictionary of American English © 2026
cow•bane
(kou′bān′),USA pronunciation n.
- Plant Biologyany of several poisonous plants of the parsley family, as Oxypolis rigidior, of swampy areas of North America, or the water hemlock, Cicuta maculata.
- cow1 + bane 1770–80
'cowbane' also found in these entries (note: many are not synonyms or translations):