Definition of killifish in English:


Line breaks: killi|fish
Pronunciation: /ˈkɪlɪfɪʃ

noun (plural same or killifishes)

  • A small toothcarp of fresh or brackish water, typically brightly coloured. They are mainly native to America and include many popular aquarium fishes.
    • Families Cyprinodontidae (or Fundulidae), which includes numerous genera of egg-laying killifishes, and Poeciliidae, which includes a few live-bearing species
    More example sentences
    • Each year since 1960, more than 35 tropical American species of fishes, including catfishes, characins, electric fishes, killifishes, and cichlids, have been newly described and named.
    • Like other visitors, he sees the bustle of life around the mudflats from clams, snails, and crabs, to shorebirds and long-legged waders, and gobies and killifish in the shallows of the estuary.
    • The only primarily freshwater killifish in the Northeast is banded killifish.


early 19th century: apparently from kill1 and fish1.

More definitions of killifish

Definition of killifish in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space