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Definition of blowfish

blowfish

/ˈbloʊ.fɪʃ/
blow · fish

Plural:blowfish
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blowfish Lexical Profile

blowfish Game Scores & Validity

• noun

1

A marine or freshwater fish of the family Tetraodontidae, noted for its ability to inflate its body with water or air when threatened, and often containing highly toxic substances.

Example

"The chef underwent rigorous certification to safely prepare blowfish, ensuring that none of its deadly toxin contaminated the meat served to guests."


2

A fast, unpatented symmetric-key block cipher used in cryptography and computer security for encrypting data.

Example

"The software engineer decided to implement Blowfish for the application's encryption, valuing its speed and public-domain availability."

Synonyms
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• Rhymes for blowfish

Word Origin & Etymology

A compound of 'blow' and 'fish', coined in the mid-18th century in reference to the animal's defensive mechanism of puffing or blowing itself up with air or water when threatened.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Blowfish. In Wordmom Dictionary. Retrieved Oct 18, 2026, from https://wordmom.com/dictionary/blowfish
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