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any of several species of snakes of the genus Agkistrodon.
highland moccasin copperhead.
water moccasin Agkistrodon piscivorus, a venomous semiaquatic pit viper with an olive or brown back, found in the southern United States. Called also cottonmouth.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.