monooxygenase

[ mŏn′ō-ŏksĭ-jə-nās′, -nāz′ ]

n.

Any of a group of enzymes that catalyze both the addition of a single oxygen atom from molecular oxygen into a substrate and the reduction of a second oxygen atom in the substrate to water.

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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.