heif·er
noun/ˈhefə(r)/
/ˈhefər/
- a young female cow that has not yet had a calf or has had only one calf
（尤指未生育过的）小母牛 Oxford Collocations DictionaryHeifer is used before these nouns:- calf
Word OriginOld English heahfore, of unknown origin.