Definition of postnotum in English:

postnotum

noun

Entomology
  • The posterior part of the notum (dorsal skeleton) of a thoracic segment, when present as a distinct sclerotized region (usually regarded as intersegmental in origin).

Origin

1920s; earliest use found in Robert Tillyard (b. 1881). From post- + notum, after mesonotum and pronotum.

Pronunciation

postnotum

/ˌpəʊstˈnəʊtəm/