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Definition of viper

viper

/ˈvaɪ.pər/
vi · per

Plural:vipers
•
Adjective:viperous
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viper Lexical Profile

viper Game Scores & Validity

• noun

1

A venomous snake belonging to the family Viperidae, typically characterized by a broad, triangular head and long, hinged fangs used for injecting venom.

Example

"The researcher carefully used a hook to lift the viper, ensuring a safe distance from its highly evolved fangs."


2

A spiteful, treacherous, or malicious person who betrays the trust of others.

Example

"He realized too late that he had invited a viper into his inner circle when she secretly leaked their strategic plans to a rival."

Synonyms
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Antonyms
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• Rhymes for viper

Word Origin & Etymology

From Old French 'vipere', derived from Latin 'vipera', which is an alteration of 'vivipera' (from 'vivus' meaning 'alive' and 'parere' meaning 'to bring forth'). This origin reflects the ancient observation that most vipers give birth to live young rather than laying eggs.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Viper. In Wordmom Dictionary. Retrieved Oct 17, 2026, from https://wordmom.com/dictionary/viper
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