Definition of gill cover in English:

gill cover

Line breaks: gill cover


  • A flap of skin protecting a fish’s gills, typically stiffened by bony plates. Also called operculum.
    More example sentences
    • The gill cover and dorsal, pelvic, anal, and caudal fins possess large red blotches.
    • The opercular series comprises each gill cover and generally consists of four bones.
    • Next, place two fingers just into the gill cover and slide the fingers forward until you reach the jaw bone.

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Word of the day kerf
Pronunciation: kəːf
a slit made by cutting with a saw