Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “pectoral fin”

pectoral fin

noun [C]     specialized
the fin on each side of a fish near the front of its body, used for controlling the direction the fish goes in and for slowing it downSubstances and structures in the body
(Definition of pectoral fin noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of pectoral fin

Translations of “pectoral fin”

Word of the Day

beneficiary

a person or group who receives money, advantages, etc. as a result of something else

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More