Definition of freemartin in English:


Syllabification: free·mar·tin
Pronunciation: /ˈfrēˌmärtn


A hermaphrodite or imperfect sterile female calf that is the twin of a male calf whose hormones affected its development.
More example sentences
  • Lillie looked at the anatomical characteristics of the freemartin, the sexually abnormal co-twin of a male calf, usually possessing female as well as male external genitalia.
  • Although the external genitalia of the freemartin may appear normal, the internal organs are abnormal in greater or lesser degrees.
  • One heifer was later found as a freemartin and, therefore, was excluded from the trial.


late 17th century: of unknown origin.

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