| 单词 | perforation |
| 释义 | perforation /perr'feuh ray"sheuhn/, n. 1. a hole, or one of a series of holes, bored or punched through something, as those between individual postage stamps of a sheet to facilitate separation. 2. a hole made or passing through a thing. 3. the act of perforating. 4. the condition or state of being perforated. [1400-50; late ME < ML perforation- (s. of perforatio) a boring through. See PERFORATE, -ION] |
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