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词汇 bichir
释义

Definition of bichir in English:

bichir

nounˈbɪʃɪəˈbiSHir
  • An elongated African freshwater fish with an armour of hard shiny scales and a series of separate fins along its back.

    (非洲)多鳍鱼

    Genus Polypterus, family Polypteridae: several species, including P. senegalus

    Example sentencesExamples
    • Most of the increase in number of centers in ray-finned fishes also occurs in the gallium, where three subdivisions can be recognized in bichirs and some 13 in teleosts.
    • All palaeoniscoids were extinct by the end of the Mesozoic, leaving only a few distant, primitive relatives alive today - the sturgeons, paddlefish, and bichirs.
    • Within the Chondrostei, only sturgeons, bichirs and paddlefishes survive today, and many are threatened.
    • Today lungs are found not only in land vertebrates but also in a few obscure fish lineages, such as gar, bichir, and lungfish.
    • Eleven species of bichirs inhabit shallow floodwater areas in tropical Africa rivers, where they feed on worms, insect larvae, and small insects.

Origin

1960s: via French from dialect Arabic abu shīr.

Definition of bichir in US English:

bichir

nounˈbiSHir
  • An elongated African freshwater fish with an armor of hard shiny scales and a series of separate fins along its back.

    (非洲)多鳍鱼

    Genus Polypterus, family Polypteridae: several species, including P. senegalus

    Example sentencesExamples
    • Most of the increase in number of centers in ray-finned fishes also occurs in the gallium, where three subdivisions can be recognized in bichirs and some 13 in teleosts.
    • Within the Chondrostei, only sturgeons, bichirs and paddlefishes survive today, and many are threatened.
    • Eleven species of bichirs inhabit shallow floodwater areas in tropical Africa rivers, where they feed on worms, insect larvae, and small insects.
    • Today lungs are found not only in land vertebrates but also in a few obscure fish lineages, such as gar, bichir, and lungfish.
    • All palaeoniscoids were extinct by the end of the Mesozoic, leaving only a few distant, primitive relatives alive today - the sturgeons, paddlefish, and bichirs.

Origin

1960s: via French from dialect Arabic abu shīr.

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