freemartin
(redirected from Freemartins)Also found in: Dictionary, Encyclopedia.
freemartin
(frē′mär′tn)n.
A female animal, usually a calf, that is born as the twin of a male animal and is sterile because of having abnormal internal reproductive organs.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
freemartin
a female twin born with a male, in which normal female sexual development has been adversely affected by hormones produced by the male twin.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005