Definition of ligula in English:

ligula

Pronunciation /ˈliɡyələ/ /ˈlɪɡjələ/

nounligulae

Entomology
  • The strap-shaped terminal part of an insect's labium, typically lobed.

    ‘They transport the spermatophores with a copulatory organ, called the ligula, located on the tip of one of their arms.’
    • ‘This individual is a hyolithid without question because both the ligula and the dorsoventral differentiation ordinarily seen in hyoliths are clearly present.’
    • ‘Conchs of the Girvan specimens match the diagnostic traits given above in terms of the ligula, aperture and ornamentation on the shell.’

Origin

Mid 18th century from Latin, ‘strap’.