Definition of dilated
1
: marked by expansion or widening : subject to dilation
Some insist that the need to learn is likely to be at the core of our dilated childhood.— Natalie Angier
specifically
: expanded, enlarged, or widened normally or abnormally in all dimensions
dilated pupils a dilated artery/cervix Abdominal roentgenograms taken when the patient was upright showed a massively dilated stomach. — Yogesh K. Gupta
2
: expanded laterally
especially
: being flat and widened
dilated leaves The flower corolla consists of only the upper dilated petal called the standard, or banner. — Sylvan T. Runkel and Dean M. Roose
3
: caused by dilatation (see dilatation sense 1a)
dilated cardiomyopathy
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Merriam-Webster unabridged
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Time Traveler for dilated
The first known use of dilated was in the 15th century
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