Definition of clypeal in US English:

clypeal

adjective

Entomology
  • See clypeus

    • ‘It can be identified by its brown to black color, well-developed petiolar process, and no median clypeal tooth.’
    • ‘This genus is easily recognized by its sharply notched clypeal margin and the unique dorsellum.’
    • ‘Above the clypeal arch are two lateral clusters of strong basiconic sensillae, but no definite antennary rudiments are to be seen.’

Pronunciation

clypeal

/-pēəl/