Behring's law

[bârĭngz, bĕr- ]
n.
  1. The principle stating that parenteral administration of serum from a person immunized to a particular disease provides the recipient with passive immunity.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.