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“sphincteral”
sphincter, sphincteral
1. A contractile muscular ring by which an orifice of the body (in man or animals) is normally kept closed.
2. A ringlike band of muscle fibers that constricts a passage or closes a natural orifice.
2. A ringlike band of muscle fibers that constricts a passage or closes a natural orifice.
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sphinctero-, sphincter- +
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