FIN

To carve or cut up, as a chub.

End; conclusion; object. [Obs.] "She knew eke the fin of his intent." Chaucer.

An organ of a fish, consisting of a membrane supported by rays, or little bony or cartilaginous ossicles, and serving to balance and propel it in the water.

A membranous, finlike, swimming organ, as in pteropod and heteropod mollusks.

A finlike organ or attachment; a part of an object or product which protrudes like a fin, as:

The hand. [Slang]

A finlike appendage, as to submarine boats. Apidose fin. (Zoöl.) See under Adipose, a. -- Fin ray (Anat.), one of the hornlike, cartilaginous, or bony, dermal rods which form the skeleton of the fins of fishes. -- Fin whale (Zoöl.), a finback. -- Paired fins (Zoöl.), the pectoral and ventral fins, corresponding to the fore and hind legs of the higher animals. -- Unpaired, or Median, fins (Zoöl.), the dorsal, caudal, and anal fins.