Dictionary![]() ![]() cow•banePronunciation: (kou'bān"), [key] —n. any of several poisonous plants of the parsley family, as Oxypolis rigidior, of swampy areas of North America, or the water hemlock, Cicuta maculata. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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