obturator

名词 n.
中文释义

英文释义

名词 n.
  1. An object used to obstruct a hole, such as a fissure of the palate.
  2. The membrane vessels, etc. that close the obturator foramen, or thyroid foramen, a large opening or fenestra in the anterior part of the hip bone.
  3. A valve closure member (disk, gate, plug, etc.).
    — Obturators, held down by compressed air, close the pipe giving direct access from the h.p. exhaust to the l.p. steam chest, and so prevent compound working; […].
  4. Any device for preventing the escape of gas through the breech mechanism of a breech-loading gun; a gas check.
  5. A camera shutter.

词形变化

obturators plural

词汇关系

衍生词
obturator foramen transobturator

词源

From Latin obtūrō (“to stop, block up”).
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