D defs.my
Entry 1 sense Webster, 1913

Prescutum

· Pre·scu·tum · IPA
01 n. The first of the four pieces composing the dorsal part, or tergum, of a thoracic segment of an insect. It is usually small and inconspicuous.
pl. Prescuta
  1. 1.
    The first of the four pieces composing the dorsal part, or tergum, of a thoracic segment of an insect. It is usually small and inconspicuous.(Zool.)