Share this entry

Share this page

adoral

Syllabification: ad·o·ral
Pronunciation: /aˈdôrəl
 
/

Definition of adoral in English:

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.
Example sentences
  • 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.

Derivatives

adorally

1
adverb
Example sentences
  • The resulting adorally arching of the septa, combined with their thickening toward the center, together improve the resistance of the ammonoid to strong dragging forces between the organism and its buoyant conch.
  • Embryonic shell.-The most apical part of the shell, adorally marked by the nepionic constriction.

Definition of adoral in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Top searches

= trending
Word of the day vicarious
Pronunciation: vəˈkerēəs
adjective
experienced in the imagination through another person's feelings…