dilator (redirected from dilator pupillae muscle)

dilator /di·la·tor/ (di-lat´er)

1. a structure that dilates, or an instrument used to dilate.

2. dilator muscle.

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di·la·tor (d-ltr, dl-, d-l-)

n.

1. An instrument or a substance for enlarging a cavity, canal, blood vessel, or opening.

2. A muscle that dilates an orifice or a body part, such as a blood vessel or the pupil of the eye. Also called dilatator.

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dilator

a structure (muscle) that dilates, or an instrument used to dilate.

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dilator pupillae muscle

dilator muscle of the pupil.

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dilator Therapeutics A device used to stretch/enlarge an opening or tubular structure–eg, esophagus, to allow the passage of food. See Bougienage.