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BNC: 25217 COCA: 18752

perforation

noun
/ˌpɜːfəˈreɪʃn/
/ˌpɜːrfəˈreɪʃn/
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  1. [countable, usually plural] a small hole in a surface, often one of a series of small holes齿孔
    • Tear the sheet of stamps along the perforations.沿齿孔把邮票撕开。
    • He made a small perforation in the lining of the tube.他在管子的衬里上打了一个小孔。
  2. [uncountable] (medical医学) the process of splitting or tearing in such a way that a hole is left穿孔；穿通
    • Excessive pressure can lead to perforation of the stomach wall.过大的压力会导致胃壁穿孔。
    3. Word Originlate Middle English: from medieval Latin perforatio(n-), from the verb perforare, from per- ‘through’ + forare ‘pierce’.

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