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Meaning of viperine

vi•per•ine

Pronunciation: (vī'pur-in, -pu-rīn"), [key]
— adj.
  1. of, pertaining to, or resembling a viper; venomous: a gossip with a viperine tongue.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.