fin

As nouns the difference between fin and metapterygium

is that fin is finn while metapterygium is the posterior of the three basal cartilages of the fins of ray-finned fish.

As nouns the difference between fin and basipterygium

is that fin is finn while basipterygium is a cartilage at the base of the fins of some fish that develops into the metapterygium upon maturity.

As nouns the difference between fin and lepidotrichia

is that fin is finn while lepidotrichia is (zoology) dermal elements located at the distal margin of osteichthyan fins.

As a noun fin

is one of the appendages of a fish, used to propel itself and to manoeuvre/maneuver.

As a verb fin

is (cut fins) To cut the fins from a fish, shark, etc.

As a proper noun Fin

is commune in the Somme department in France.

As an adjective finless is

lacking a fin or fins, without fins.