Definition of pectoral in English:


Syllabification: pec·to·ral
Pronunciation: /ˈpektərəl


  • 1Of or relating 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) Back to top  
  • 1A pectoral muscle.
    More 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.
    More 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.
    More 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'.

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