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microaneurysm

mi·cro·an·eu·rysm [ mkrō ánnyə rìzzəm ] (plural mi·cro·an·eu·rysms)


noun 
Definition:
 
1. medicine tiny swelling on artery: a minute local widening of arteries. When occurring in the brain, it is believed to be an important cause of cerebral hemorrhage.

2. ophthalmology tiny pinpoint dilations on retina: a pattern of tiny pinpoint dilations seen on the retinas of most people affected by diabetic retinopathy

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