- dilator - a muscle or nerve that dilates or widens a body part
--1 is a kind of body part
Derived form: verb dilate1 - dilator - a drug that causes dilation
--2 is a kind of drug
--2 has particulars: vasodilator, vasodilativeDerived form: verb dilate1 - dilator, dilater - a surgical instrument that is used to dilate or distend an opening or an organ
--3 is a kind of surgical instrument
Derived form: verb dilate1