Share this entry

freemartin Line breaks: free|mar¦tin
Pronunciation: /ˈfriːmɑːtɪn/

Definition of freemartin in English:


A hermaphrodite or imperfect sterile female calf which is the twin of a male calf whose hormones affected its development.
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.

Definition of freemartin in:

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day coiffeur
Pronunciation: kwɑːˈfəː
a hairdresser