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1. (n.) dilator
any muscle that dilates a part of the body.
2. dilator
a surgical instrument for performing a dilatation.
Etymology: (1595–1605)
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| Definition of 'dilator' |
Princeton's WordNet |
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1. (noun) dilator
a muscle or nerve that dilates or widens a body part
2. (noun) dilator
a drug that causes dilation
3. (noun) dilator, dilater
a surgical instrument that is used to dilate or distend an opening or an organ
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| Definition of 'dilator' |
Webster Dictionary |
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1. (noun) dilator
one who, or that which, widens or expands
2. (noun) dilator
a muscle that dilates any part
3. (noun) dilator
an instrument for expanding a part; as, a urethral dilator
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Definitions of dilator 
