pectoral fin

1. 1.

   either of a pair of fins situated just behind the head in fishes that help control the direction of movement

   Broaderfin

Questions about pectoral fin

What does pectoral fin mean?

pectoral fin means "either of a pair of fins situated just behind the head in fishes that help control the direction of movement".

Is pectoral fin a common word?

pectoral fin is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.