transcobalamin

[ trăns′kō-bălə-mĭn ]

n.

Any of a family of cobalamin-binding proteins, deficiencies of which have been associated with low serum cobalamin levels.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.