Also known as: AN., AN...
AN has various meanings in the Medical category. Discover the full forms, definitions, and usage contexts of AN in Medical.
Acanthosis nigricans is a brown to black, poorly defined, velvety hyperpigmentation of the skin. It is usually found in body folds, such as the posterior and lateral folds of the neck, the armpits, groin, navel, forehead, and other areas.
MedicalA numeric identification of a work package. An account number may be assigned to one or more activities.
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