the female of a pair of twin calves of unlike sex that is imperfectly developed and sterile, probably due to the influence of the male hormones of its twin during development in the uterus
WordReference Random House Unabridged Dictionary of American English © 2025
free•mar•tin
(frē′mär′tn),USA pronunciation n.
- Animal Husbandrya 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.
- origin, originally uncertain 1675–85
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