Definition of "adoral"

The feeding cavity should remain designated as a prostomial cavity, rather than the adoral, or buccal, cavity.

1977, Earl D. Hanson, The origin and early evolution of animals, Wesleyan

I now prefer to consider it a specialized adoral seta, presupposed that the rutellum is also a specialized adoral seta. This means that paralabial and adoral are synonymous.

1969, Zoologische Mededeelingen