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zebrafish

American  
[zee-bruh-fish, zeb-ruh-] / ˈzi brəˌfɪʃ, ˈzɛb rə- /

noun

zebrafishes plural
  1. a small, slender freshwater fish, Brachydanio rerio, having luminous bluish-black and silvery-gold horizontal stripes: popular in home aquariums.


Etymology

Origin of zebrafish

First recorded in 1765–75; zebra + fish

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Using those findings, Brown's lab designed a viral gene therapy based on a tissue regeneration enhancer previously identified in zebrafish.

From Science Daily • May 9, 2026

Researchers selected axolotls, zebrafish, and mice because each species offers unique insights into regeneration.

From Science Daily • May 9, 2026

The model suggests that, even 67 million years ago, otophysan fish had nearly as sensitive hearing as zebrafish do today.

From Science Daily • Nov. 3, 2025

The technique also successfully repaired mutations linked to scoliosis in zebrafish embryos.

From Science Daily • Oct. 25, 2025

He sees consolation in zebrafish gathering around a distressed tankmate, for example, and generosity in lab rats choosing to forgo immediate treats to free a trapped colleague, sometimes sharing the food afterward.

From The Wall Street Journal • Oct. 13, 2025

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