Dilator

·noun A muscle that dilates any part.

II. Dilator ·noun One who, or that which, widens or expands.

III. Dilator ·noun An instrument for expanding a part; as, a urethral dilator.

dilator
dīlātor, ōris, m. [differo, B. 3.], a delayer, a dilatory person , Hor. A. P. 172; Isid. 10, 77....

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
dilator
dīlātor ōris, m dis- + TAL-, a delayer, dilatory person , H. ...

An Elementary Latin Dictionary