freemartin: Meaning and Definition of

free•mar•tin

Pronunciation: (frē'mär"tn), [key]
— n.
  1. a female calf that is born as a twin with a male and is sterile as a result of exposure to masculinizing hormones produced by the male.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.