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词汇 druse
释义

Definition of druse in English:

druse

noun druːzdruz
  • 1Geology
    A rock cavity lined with a crust of projecting crystals.

    〔地质〕晶洞

    1. 1.1 The crust of crystals lining a druse.
      晶簇
      Example sentencesExamples
      • It generally occurs as crystalline druses on chalcopyrite, tetrahedrite, and other minerals and is sometimes associated with polybasite and dyscrasite.
      • The crystals form druses that line the pockets and partially coat the copper crystal groups.
      • Most such specimens are partially coated with a druse of calcite, epidote, and small, clear needle quartz crystals.
      • Like the malachite, it occurs as druses that are perpendicularly attached to columns of gypsum.
      • The contact between these zones is marked by large voids, the bottom surfaces of which are encrusted with druses of tabular microcline crystals.
  • 2Botany
    A rounded cluster of calcium oxalate crystals found in some plant cells.

    〔植〕晶簇

    Example sentencesExamples
    • Considerable quantities of calcium oxalate druses were found in the leaves.
    • Occasionally, calcium oxalate raphide or druse crystals were observed in this tissue.
    • Some diagnostic features can be easily mistaken for others: short hairs for prickles, small glands and druses for papillae, etc.

Derivatives

  • drusy

  • adjective ˈdruːziˈdruzi
    Geology
    • (of a rock cavity or surface) lined with a crust of projecting crystals.

      〔地质〕晶洞

      a drusy cavity of a green mineral
      Example sentencesExamples
      • The only consistently correct identifications were those made when distinct crystals could be seen or when the apple-green spheres were compact, with their outer surface smooth or only slightly drusy.
      • They are brown in color, are usually encrusted with drusy quartz crystals, and reach lengths of 6 cm or more.
      • To top it off, some of the quartz crystal vugs contain translucent pseudocubic crystals of calcite, to 1.2 cm on edge, perched on the drusy quartz.

Origin

Early 19th century: via French from German Druse 'weathered ore'.

Definition of druse in US English:

druse

noundruzdro͞oz
  • 1Geology
    A rock cavity lined with a crust of projecting crystals.

    〔地质〕晶洞

    1. 1.1 The crust of crystals lining a rock cavity.
      晶簇
      Example sentencesExamples
      • Like the malachite, it occurs as druses that are perpendicularly attached to columns of gypsum.
      • Most such specimens are partially coated with a druse of calcite, epidote, and small, clear needle quartz crystals.
      • The contact between these zones is marked by large voids, the bottom surfaces of which are encrusted with druses of tabular microcline crystals.
      • The crystals form druses that line the pockets and partially coat the copper crystal groups.
      • It generally occurs as crystalline druses on chalcopyrite, tetrahedrite, and other minerals and is sometimes associated with polybasite and dyscrasite.
  • 2Botany
    A rounded cluster of calcium oxalate crystals found in some plant cells.

    〔植〕晶簇

    Example sentencesExamples
    • Considerable quantities of calcium oxalate druses were found in the leaves.
    • Occasionally, calcium oxalate raphide or druse crystals were observed in this tissue.
    • Some diagnostic features can be easily mistaken for others: short hairs for prickles, small glands and druses for papillae, etc.

Origin

Early 19th century: via French from German Druse ‘weathered ore’.

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