OTA Medical Abbreviation

Occupational Thwrapy Assistant

Occupational Therapist Assistant

Ochratoxin A

Ochratoxin A—a toxin produced by Aspergillus ochraceus, Aspergillus carbonarius, and Penicillium verrucosum—is one of the most-abundant food-contaminating mycotoxins. It is also a frequent contaminant of water-damaged houses and of heating ducts. Human exposure can occur through consumption of contaminated food products, particularly contaminated grain and pork products, as well as coffee, wine grapes, and dried grapes.

Office of Technological Assessment

Oligo-Terato-Asthenozoospermia

Ornithine Transaminase

Office of Temporary Assistance

Oxytocin Entagonist

Office of Technology Assessment (U.S.; abolished by Congress, Fall 1995)