Top Definition
1. A freemartin or free-martin (sometimes martin heifer) is a female bovine with a masculinized behavior and non-functioning ovaries. Genetically and externally the animal is female, but it is sterilized in utero by hormones from a male twin, becoming an infertile partial intersex.1
2. Lesbian.
I didn't know she was a freemartin.
by Frobert April 13, 2008
9 Words related to freemartin
1. A large masculine woman with striking similarities to a lesbian cow.
2. A female bovine with masculinized behavior and non-functioning ovaries.
Is she one of those hot lesbians, or is she a freemartin?
by Hinkle Faernsworthe May 26, 2008

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