AAA Meaning in Medicine

In medicine, AAA stands for Abdominal Aortic Aneurysm. This is the best, straight-forward definition for AAA meaning in medical dictionaries. However, there are other medical meanings with similar AAA abbreviations.

An aneurysm is an area of a localized widening (dilation) of a blood vessel. The word “aneurysm” is borrowed from the Greek “aneurysma“, meaning “a widening.”

An aortic aneurysm involves the aorta, the major artery that leaves the heart to supply blood to the body. An aortic aneurysm is a dilation or bulging of the aorta.

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