Plaque



GRE

解释

GRE 红宝书

• n. 匾; 血小板
• ［英］ n. 匾 ( a flat decorative metal or stone plate)
• ［类］ artery : plaque / channel : silt ( 血小板阻碍动脉畅通 / 淤泥阻碍航道畅通)

Webster Collegiate

noun

• Etymology: French, from Middle French, metal sheet, from plaquer to plate, from Middle Dutch placken to piece, patch; akin to Middle Dutch placke piece, Middle High German placke patch
• Date: 1845
• 1.
  • a. an ornamental brooch; especially the badge of an honorary order
  • b. a flat thin piece (as of metal) used for decoration
  • c. a commemorative or identifying inscribed tablet
• 2.
  • a. a localized abnormal patch on a body part or surface
  • b. a sticky usually colorless film on teeth that is formed by and harbors bacteria
  • c. an atherosclerotic lesion
  • d. a histopathologic lesion of brain tissue that is characteristic of Alzheimer's disease and consists of a dense proteinaceous core composed primarily of beta-amyloid that is often surrounded and infiltrated by a cluster of degenerating axons and dendrites
• 3. a clear area in a bacterial culture produced by viral destruction of cells

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