zebrafish

American  

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

noun

plural

zebrafishes,

plural

zebrafish

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

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Etymology

Origin of zebrafish

First recorded in 1765–75; zebra + fish

Example Sentences

However, the zebrafish experiments showed that glucose levels in the intestine can become high enough after eating to activate this pathway even under normal conditions.

From Science Daily • Dec. 17, 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

To understand the contributions from circuit anatomy, Dr. Aksay and his collaborators looked to larval zebrafish.

From Science Daily • Nov. 22, 2024

Working with week-old zebrafish larva, researchers at Weill Cornell Medicine and colleagues decoded how the connections formed by a network of neurons in the brainstem guide the fishes' gaze.

From Science Daily • Nov. 22, 2024