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sphincter muscle vs pupillary sphincter

pupillary sphincter vs sphincter muscle

sphincter muscle and pupillary sphincter both are nouns.

Word NounAdjectiveVerbAdverb
sphincter muscle Yes No No No
pupillary sphincter Yes No No No
As nouns, pupillary sphincter is a hyponym of sphincter muscle; that is, pupillary sphincter is a word with a more specific, narrower meaning than sphincter muscle:
  • sphincter muscle: a ring of muscle that contracts to close an opening
  • pupillary sphincter: a ring of smooth muscle surrounding the iris
sphincter muscle (noun) pupillary sphincter (noun)
a ring of muscle that contracts to close an opening a ring of smooth muscle surrounding the iris
Difference between sphincter muscle and pupillary sphincter

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