fin
3 ENTRIES FOUND:
plural
fins
plural
fins
Britannica Dictionary definition of FIN
[count]
1
:
a thin flat part that sticks out from the body of a fish and is used in moving or guiding the fish through water
-
a fish with blue scales and spiny fins
-
a shark fin
2
:
a part on a machine (such as a car or airplane) that is shaped like a fish's fin
—
see also tail fin
-
a car from the 1950s with fins on the back
-
a finned creature [=a fish]
