Definition of prescutum in US English:

prescutum

(also praescutum)

noun

Zoology
  • The first notal (dorsal) sclerite in each thoracic segment of an insect. Also: an analogous sclerite in the anterior segments of certain other arthropods.

Origin

Mid 19th century; earliest use found in Alpheus Packard (1839–1905). From pre- + scutum.

Pronunciation

prescutum

/ˌpriːˈskjuːtəm/