What is the meaning of Dilator?

Any nerve or muscle that causes part of the body to dilate.

Any drug that causes such dilation.

An instrument used to dilate an orifice or cavity.

dilator

1. any nerve or muscle that causes part of the body to dilate.
2. any drug that causes such dilation.
3. an instrument used to dilate an orifice or cavity.

any nerve or muscle that causes part of the body to dilate.

any drug that causes such dilation.

an instrument used to dilate an orifice or cavity.

one who delays, a dilatory person

first-person singular present passive indicative of dīlātō

Source: wiktionary.org