international insulin unit

in·ter·na·tion·al insulin unit

(ĭn′tər-năsh′ə-nəl)
n.
The activity contained in 1/22 milligram of the international standard of zinc-insulin crystals.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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