A contractile muscular ring by which an orifice of the body (in people or animals) is normally kept closed.
| 单词 | θ27361 |
| 释义 | the world > life > the body > structural parts > muscle > muscles of specific parts > [noun] > muscle of anus (3) sphincter1578 A contractile muscular ring by which an orifice of the body (in people or animals) is normally kept closed. twiddling string1594 Cf. twattling strings at twattling, adj. 2. twattling strings1611 Sounding, making a noise. colloquial. |
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