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Definition of AAO

AAO: 1. Alert and oriented.
2. American Association of Ophthalmology, a professional organization.
3. American Academy of Otolaryngology, a professional organization.
4. American Association of Orthodontists, a professional organization.
5. Amino acid oxidase, an enzyme.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=2077
Last Editorial Review: 8/28/2013

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