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单词 spherulite
释义

Definition of spherulite in English:

spherulite

noun ˈsfɛrjʊlʌɪtˈsfer-
Geology
  • A small spheroidal mass of crystals (especially of a mineral) grouped radially around a point.

    〔主地质〕球粒,团簇粒

    Example sentencesExamples
    • In the absence of salt, the spherulite kinetic assay suggests the presence of spherulites from ~ 40 to 45 min.
    • Although they lack the fibrous, radiating crystals that conform to the traditional definition of a spherulite, their cores show a crystal size and density somewhat higher than that of the surrounding rhyolite shell.
    • Under the polarized light microscope, addition of a full waveplate to the optical set-up showed that spherulites grown in the absence or presence of salt contain radially oriented amyloid fibrils.
    • Initially, no spherulites can be observed when a drop of a spherulite-containing solution is imaged in the microscope.
    • These cores will have grown to substantial sizes, giving rise to large spherulites with cores representing a significant proportion of their total volume.

Derivatives

  • spherulitic

  • adjective sfɛrjʊˈlɪtɪk
    Geology
    • Their study of whole-rock chemistry has shown somewhat higher silica contents of the spherulitic structures as compared to the host rhyolite glass.
      Example sentencesExamples
      • Besides, the aragonitic shell is made up of two oriented layers: an irregular spherulitic prismatic layer and a fine complex crossed lamellar layer.
      • These aggregates scatter light, however, due to their amorphous nature, and would not be spherulitic or birefringent.
      • The granular to spherulitic microstructure of Carinachites has been documented by several previous authors.
      • They typically grow in two-dimensional fanlike and spherulitic arrays.

Origin

Early 19th century: from spherule + -ite1.

Definition of spherulite in US English:

spherulite

nounˈsfer-
Geology
  • A small spheroidal mass of crystals (especially of a mineral) grouped radially around a point.

    〔主地质〕球粒,团簇粒

    Example sentencesExamples
    • Under the polarized light microscope, addition of a full waveplate to the optical set-up showed that spherulites grown in the absence or presence of salt contain radially oriented amyloid fibrils.
    • In the absence of salt, the spherulite kinetic assay suggests the presence of spherulites from ~ 40 to 45 min.
    • Initially, no spherulites can be observed when a drop of a spherulite-containing solution is imaged in the microscope.
    • These cores will have grown to substantial sizes, giving rise to large spherulites with cores representing a significant proportion of their total volume.
    • Although they lack the fibrous, radiating crystals that conform to the traditional definition of a spherulite, their cores show a crystal size and density somewhat higher than that of the surrounding rhyolite shell.

Origin

Early 19th century: from spherule + -ite.

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更新时间:2024/12/27 17:09:45