Definition of antepectoral in English:

antepectoral

adjective

  • 1Entomology
    rare Entomology located on or attached to the underside of the prothorax (now rare).

  • 2Located in front of or in the anterior part of the thorax, specifically in front of the pectoral fin of a fish.

Origin

Early 19th century; earliest use found in William Kirby (1759–1850), entomologist and naturalist.