Definition of adipose fin in English:

adipose fin


  • A small, rayless, fleshy dorsal fin present in certain fishes, notably in the salmon family.

    • ‘It has a small terminal mouth, and an adipose fin may or may not be present.’
    • ‘There is no dorsal adipose fin present on Rhadinesthes decimus.’
    • ‘All stocked fish had the adipose fin clipped so that they could easily be recognised.’
    • ‘Like all salmonids the grayling has a small adipose fin behind the dorsal fin.’
    • ‘Another physical characteristic of the brook trout is an adipose fin and a caudal fin that is slightly forked.’