finlike

/ˈfɪnˌlaɪk/
adjective
  1. Resembling or shaped like a fin, especially the fin of a fish.
    • The robot's finlike appendages allowed it to glide through the water.
    • The ancient fossil had finlike structures along its back.
    • The diver wore finlike flippers to help him swim faster.
Synonyms
What does "finlike" mean? | whatsthatwordmean | whatsthatwordmean