(definition) by Webster 1913 Tue Dec 21 1999 at 23:04:51

Di*lat"or (?), n. [See Dilate.]

1.

One who, or that which, widens or expands.

2. Anat.

A muscle that dilates any part.

3. Med.

An instrument for expanding a part; as, a urethral dilator.

 

© Webster 1913.

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