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Sphincter vs Undefined - What's the difference?

sphincter | undefined |

As a noun sphincter

is (anatomy) a ringlike band of muscle that surrounds a bodily opening, constricting and relaxing as required for normal physiological functioning.

As an adjective undefined is

lacking a definition or value.

sphincter

English

(wikipedia sphincter)

Noun

(en noun)
  • (anatomy) A ringlike band of muscle that surrounds a bodily opening, constricting and relaxing as required for normal physiological functioning.
    • the sphincter of the bladder
    the iris sphincter in the eye
  • * 1982 , (Lawrence Durrell), Constance'' (Faber & Faber, 2004: ''Avignon Quintet ), page 836:
    • She decided that she would force him to climax first by the sheer strength of her young animal control, the strength of her sphincters
  • # (in particular) The internal or external anal sphincter, to the extent these are distinguished as two separate entities.

    • Synonyms

    * anatomical sphincter

    Derived terms

    * anal sphincter * lower esophageal sphincter * pyloric sphincter * sphincteral * urethral sphincter * upper esophageal sphincter

    Related terms

    * sphinx

    See also

    * cardia

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined