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词汇 crenulate
释义

Definition of crenulate in English:

crenulate

adjective ˈkrɛnjʊleɪtˈkrenyəlit
technical
  • (especially of a leaf, shell, or shoreline) having a finely scalloped or notched outline or edge.

    〈技〉(尤指叶子或贝壳)具细圆齿状(或小扇形)缘的;(海岸线的轮廓)有凹口的,参差不齐的。比较CRENATE

    Compare with crenate
    Example sentencesExamples
    • The maximum width of this specimen occurs at the mid-length, and the anterolateral margin is crenulate.
    • Growth lines are very finely crenulate in a narrow zone approximately two-thirds the distance from the umbilicus to the periphery, and the shell here has a very weak shoulder.
    Synonyms
    jagged, craggy, rugged, uneven, rough, irregular, broken

Derivatives

  • crenulated

  • adjective
    technical
    • In the course of evolution, besides other modifications, the anterior crenulated hinge plate portion has been reduced.
      Example sentencesExamples
      • The edge of the outer lip is crenulated, and usually has a weakly convex profile when viewed from the apertural side of the shell.
      • The outer lip is crenulated on its edge, and smooth or weakly denticulate on the inner side.
      • These openings are either papillated or crenulated along the external margin.
      • The anterior half of the tooth is less crenulated than the posterior half.
  • crenulation

  • noun
    technical
    • Some species possess only crenulated growth lines, while in others there is a very strong crenulation, causing a spiral ornament.
      Example sentencesExamples
      • The crenulations are either dorsally open or represent filled structures.
      • Sporadically developed crenulation occurs on some foliation surfaces as small patches of closely spaced wrinkles.
      • The enamel in the synclines shows crenulations.
      • This elevated structure extends ventrally in order to produce the marginal crenulations in the ventral part of the shell.

Origin

Late 18th century: from modern Latin crenulatus, from crenula, diminutive of crena 'notch'.

Definition of crenulate in US English:

crenulate

adjectiveˈkrenyəlit
technical
  • (especially of a leaf, shell, or shoreline) having a finely scalloped or notched outline or edge.

    〈技〉(尤指叶子或贝壳)具细圆齿状(或小扇形)缘的;(海岸线的轮廓)有凹口的,参差不齐的。比较CRENATE

    Compare with crenate
    Example sentencesExamples
    • The maximum width of this specimen occurs at the mid-length, and the anterolateral margin is crenulate.
    • Growth lines are very finely crenulate in a narrow zone approximately two-thirds the distance from the umbilicus to the periphery, and the shell here has a very weak shoulder.
    Synonyms
    jagged, craggy, rugged, uneven, rough, irregular, broken

Origin

Late 18th century: from modern Latin crenulatus, from crenula, diminutive of crena ‘notch’.

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