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单词 adoral
释义

Definition of adoral in English:

adoral

adjective adˈɔːr(ə)laˈdôrəl
Zoology
  • Relating to or denoting the side or end where the mouth is situated.

    the adoral shields

    口缘保护盾。

    Example sentencesExamples
    • Therefore, in these early stages, the boundary can be drawn between these aboral plates and those formed adoral to the terminals.
    • These structures improve the resistance of the ammonite septum to pressure upon its main surface in both adapical and adoral directions.
    • 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.

Derivatives

  • adorally

  • adverb
    Zoology
    • Embryonic shell.-The most apical part of the shell, adorally marked by the nepionic constriction.
      Example sentencesExamples
      • 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.

Origin

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

Definition of adoral in US English:

adoral

adjectiveaˈdôrəl
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.

    〔动〕(尤指没有明确上下部之分的动物,如棘皮动物)近口的,口端的,口侧的,口缘的

    the adoral shields

    口缘保护盾。

    Example sentencesExamples
    • These structures improve the resistance of the ammonite septum to pressure upon its main surface in both adapical and adoral directions.
    • 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.

Origin

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

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更新时间:2025/1/29 8:29:52