Definition of pectoral in English:

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Pronunciation: /ˈpekt(ə)rəl/


1Relating to the breast or chest: pectoral development
More example sentences
  • It involves removing the breast and the lymph nodes but leaving the pectoral chest muscles intact.
  • Cyprinodon diabolis has 17 pectoral rays, 12 dorsal rays and 28 caudal rays.
  • There are 11 dorsal spines and 17 pectoral rays that help to distinguish it from the closely related Amphiprion percula.
1.1Worn on the chest: a pectoral shield


(usually pectorals)
1A pectoral muscle.
Example sentences
  • The combined training group also completed 4 strengthening exercises targeting the pectorals, latissimus dorsi, gluteals, and quadriceps for 45 minutes.
  • The fact that they are middle-aged men - the lines on their faces as chiseled as their biceps, triceps and pectorals - adds to the curiosity the images elicit.
  • Your cardiovascular system is composed of your heart, arteries etc, whilst your muscular system is made up of your biceps, pectorals, deltoids etc.
1.1A pectoral fin.
Example sentences
  • Namazu stood on his three prominent fins, the two pectorals and his caudal flippers.
  • All of the fins, except the pectorals, were small and placed posteriorly.
1.2An ornamental breastplate, especially one worn by a Jewish high priest.
Example sentences
  • The pectoral is part of an exhibition which opened on March 30.
  • This wonderful piece, the pectoral, which is enough to cover a fairly large adult chest is so gorgeous it actually makes you want to cry.


Late Middle English (in the sense 'breastplate'): from Latin pectorale 'breastplate', pectoralis 'of the breast', from pectus, pector- 'breast, chest'.

Words that rhyme with pectoral

electoral, prefectoral, protectoral

For editors and proofreaders

Syllabification: pec·to·ral

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