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单词 umbilicate
释义

Definition of umbilicate in English:

umbilicate

adjective ʌmˈbɪlɪkət
Zoology Botany
  • 1(especially of the cap of a fungus) having a central depression.

    1. 1.1 (of a shell) having an umbilicus.
      Example sentencesExamples
      • Almost no widely umbilicate species existed, and only three morphs (E-, H-, and I-morphs) occupied a comparatively small area of the morphospace.
      • If the umbilicate side is directed downward and the flat side upward, this gives the impression the shell is sinistral or a left-handed spiral, because the aperture when held toward the observer is on the left.
      • Modal geometries C and D appear to represent the tendency for these pioneers, i.e., slowly expanding, moderately to openly umbilicate, compressed shells, typified by Otoceras and Ophiceras.
      • These four morphs represent a more or less continuous morphological series from widely umbilicate conch shapes with low aperture to conch geometries with a narrow umbilicus and high aperture.
      • The dominant taxa at that time (modal geometries C and D) had compressed, moderately to openly umbilicate shells with slowly expanding whorls, morphologies poorly exploited by Permian goniatitids.
      • By contrast, a narrowly umbilicate and thin shell possesses slender and dense ornamentation.
 
 

Definition of umbilicate in US English:

umbilicate

adjective
Botany Zoology
  • 1(especially of the cap of a fungus) having a central depression.

    1. 1.1 (of a shell) having an umbilicus.
      Example sentencesExamples
      • These four morphs represent a more or less continuous morphological series from widely umbilicate conch shapes with low aperture to conch geometries with a narrow umbilicus and high aperture.
      • By contrast, a narrowly umbilicate and thin shell possesses slender and dense ornamentation.
      • Almost no widely umbilicate species existed, and only three morphs (E-, H-, and I-morphs) occupied a comparatively small area of the morphospace.
      • Modal geometries C and D appear to represent the tendency for these pioneers, i.e., slowly expanding, moderately to openly umbilicate, compressed shells, typified by Otoceras and Ophiceras.
      • The dominant taxa at that time (modal geometries C and D) had compressed, moderately to openly umbilicate shells with slowly expanding whorls, morphologies poorly exploited by Permian goniatitids.
      • If the umbilicate side is directed downward and the flat side upward, this gives the impression the shell is sinistral or a left-handed spiral, because the aperture when held toward the observer is on the left.
 
 
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更新时间:2025/1/31 7:28:00