Definition of adoral in English:

adoral

adjective

Zoology
  • Relating to or denoting the side or end where the mouth is situated, especially in animals, such as echinoderms, that lack clear upper and lower sides.

    • ‘Therefore, in these early stages, the boundary can be drawn between these aboral plates and those formed adoral to the terminals.’
    • ‘These individuals are rare, are less than 15 mm in test diameter, and contain spines very similar to the thin, gracile, lightly ornamented, adoral spines of larger specimens.’
    • ‘These structures improve the resistance of the ammonite septum to pressure upon its main surface in both adapical and adoral directions.’

Origin

Late 19th century: from ad- at + oral.

Pronunciation:

adoral

/aˈdôrəl/