a unit of vitamin D; the total amount of vitamin D that will produce within 10 days a narrow line of calcium deposit in the rachitic metaphyses of the distal ends of the radii and ulnae of standard rachitic rats.
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Steenbock,Harry, U.S. physiologist and chemist, 1886-1967.
Steenbock unit - a unit of vitamin D.
Medical Eponyms © Farlex 2012