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Definitions for Viper

[1] any of several venomous Old World snakes of the genus Vipera, especially V. berus, a small snake common in northern Eurasia.
[2] any related snakes belonging to the family Viperidae, characterized by erectile, venom-conducting fangs.
[3] pit viper.
[4] any of various venomous or supposedly venomous snakes.
[5] a malignant or spiteful person.
[6] a false or treacherous person.
[7] (initial capital letter ) Military . a 9-pound (4 kg), shoulder-launched, unguided U.S. Army antitank rocket with an effective range of 273 yards (250 meters).
[8] to nourish a viper in one's bosom , to befriend a person who proves to be treacherous.
[9] any venomous Old World snake of the family Viperidae, esp any of the genus Vipera (the adder and related forms), having hollow fangs in the upper jaw that are used to inject venom
[10] any of various other snakes, such as the horned viper
[11] See pit viper
[12] a malicious or treacherous person

Words related to Viper

cobra, rattle, snake, copperhead, asp, adder

Words nearby Viper

violone, viomycin, viosterol, viotti, vip, viper, viper in one's bosom, viper's bugloss, viperfish, viperine, viperous

Origin of Viper

1520–30; < Latin vīpera, haplological variant of *vīvipera, noun use of feminine of *vīviper, later (as re-formation) vīviparus viviparous

Other words from Viper

vi·per·ish , adjective
vi·per·ish·ly , adverb

Word origin for Viper

C16: from Latin vīpera, perhaps from vīvus living + parere to bear, referring to a tradition that the viper was viviparous

Synonyms for Viper

cobra, adder, asp, copperhead, rattle, snake