[dahy-ley-ter, di-, dahy-ley-] 
| 1. | Anatomy. a muscle that dilates some cavity of the body. |
| 2. | Surgery. an instrument for dilating body canals, orifices, or cavities. |
| di·la·tor (dī-lā'tər, dī'lā'-, dĭ-lā'-) n.
|
dilator di·la·tor (dī-lā'tər, dī'lā'-, dĭ-lā'-)
n.
An instrument or a substance for enlarging a cavity, canal, blood vessel, or opening.
A muscle that dilates an orifice or a body part, such as a blood vessel or the pupil of the eye. Also called dilatator.
tər