Medical Dictionary

dilator

noun di·la·tor \ (ˈ)dī-ˈlāt-ər, də- \

medical Definition of dilator

: one that dilates: as
a : an instrument for expanding a tube, duct, or cavity
  • a urethral dilator
called also divulsor
b : a muscle that dilates a part
c : a drug (as a vasodilator) causing dilation

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