Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A small freshwater fish (Danio rerio) of South Asia that has horizontal dark blue and silvery stripes, is popular in home aquariums, and is used as a model organism in the study of developmental biology and medical genetics.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A small striped fish, Danio rerio, originally from India but now common as an aquarium fish and as a subject of genetic experiments.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

zebra +‎ fish

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  • These fish are from Northern India ,

    Brachydanio rerio

    May 19, 2009