Definition of sphincter

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  • sphincter is a valid Scrabble US word with a point value of 16
  • sphincter is a valid Scrabble UK word with a point value of 16
  • sphincter is a valid Words with friends word with a point value of 18

Definition of sphincter

  • a ring of muscle that contracts to close an opening (noun)

    Synonyms

    1. anatomical sphincter
    2. sphincter muscle

See definition of sphincter in Merriam Webster