Definition of dilation

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  • dilation is a valid Scrabble US word with a point value of 9
  • dilation is a valid Scrabble UK word with a point value of 9
  • dilation is a valid Words with friends word with a point value of 11

Definition of dilation

  • the act of expanding an aperture (noun)

    Examples

    1. the dilation of the pupil of the eye

    Synonyms

    1. dilatation
  • a lengthy discussion (spoken or written) on a particular topic (noun)

See definition of dilation in Merriam Webster