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单词 ctenoid
释义

Definition of ctenoid in English:

ctenoid

adjective ˈtiːnɔɪd
Zoology
  • (of fish scales) having many tiny projections on the edge like the teeth of a comb, as in many bony fishes.

    Compare with ganoid and placoid
    Example sentencesExamples
    • Its scales are ctenoid, and it has no preorbital scales.
    • The scales may be cycloid, ctenoid, or absent and the lateral line is absent.
    • Triplefin blennies are also unique among blennies in that they possess ctenoid (rough-edged) scales (except for three species).
    • E. llajara differs from E. lanceolatus in having ctenoid scales on the sides of the body, and small black spots on the head and dorsal part of the body.
    • The body is covered with small ctenoid scales that extend well onto the dorsal and anal fins.

Origin

Mid 19th century: from Greek kteis, kten- 'comb' + -oid.

 
 

Definition of ctenoid in US English:

ctenoid

adjective
Zoology
  • (of fish scales) having many tiny projections on the edge like the teeth of a comb, as in many bony fishes.

    Compare with ganoid and placoid
    Example sentencesExamples
    • Triplefin blennies are also unique among blennies in that they possess ctenoid (rough-edged) scales (except for three species).
    • The scales may be cycloid, ctenoid, or absent and the lateral line is absent.
    • E. llajara differs from E. lanceolatus in having ctenoid scales on the sides of the body, and small black spots on the head and dorsal part of the body.
    • Its scales are ctenoid, and it has no preorbital scales.
    • The body is covered with small ctenoid scales that extend well onto the dorsal and anal fins.

Origin

Mid 19th century: from Greek kteis, kten- ‘comb’ + -oid.

 
 
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更新时间:2024/12/23 19:16:38