n. An oral dryness often associated with certain medicines and recreational drugs.
n. A snake, Agkistrodon piscivorus, the water moccasin.
n. A snake, Agkistrodon contortrix mokasen, the northern copperhead.
the GNU version of the Collaborative International Dictionary of English
n. venomous semiaquatic snake (Agkistrodon piscivorus) of swamps in southern U.S.; -- called also water moccasin, cottonmouth moccasin, and cottonmouth water moccasin. It grows to a length of about 4 feet. The name refers to the whiteness of the lips and inside of the mouth.
The Century Dictionary and Cyclopedia
n. A venomous serpent of the southern United States, a species of moccasin or Trigonocephalus: so called from a white streak along the lips.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. venomous semiaquatic snake of swamps in southern United States
Word Usage
"Since I like trivia (and snakes), I learned how to tell a water snake from a poisonous water moccasin (also known as a cottonmouth)."