noun
Freq #34419
Meanings
-
1
noun
the act of expanding an aperture
The dilation of the pupil of the eye.
Thesaurus
Synonyms
1
noun
· the act of expanding an...
dilatation
Opposites
Word family
Forms
dilatationdilations
Derived forms
arteriodilationbronchodilationdilationalhyperdilationnipple-dilationoverdilationpostdilationredilationunderdilationvasodilationvenodilation
Etymology
From dilate + -ion, late 16th c.
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