Share this entry
dorsal fin Line breaks: dor¦sal fin

Definition of dorsal fin in English:


An unpaired fin on the back of a fish or whale, e.g. the tall triangular fin of a shark or killer whale.
Example sentences
  • It has two dorsal fins and a caudal fin or tail like that of a shark.
  • They have one caudal fin, one dorsal fin, two pelvic fins, one anal fin, and two pectoral fins.
  • This is the pattern seen in the dorsal fins of fishes, in Dimetrodon and among iguanid lizards.
Definition of dorsal fin in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources