Definition of terrier noun from the Oxford Advanced Learner's Dictionary

 

terrier

 noun
noun
BrE BrE//ˈteriə(r)//
 
; NAmE NAmE//ˈteriər//
 
Domesticated mammals
 
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a small active dog. There are many types of terrier. see also bull terrier, pit bull terrier, Yorkshire terrier See related entries: Domesticated mammals Word Origin late Middle English: from Old French (chien) terrier ‘earth (dog)’, from medieval Latin terrarius, from Latin terra ‘earth’.
See the Oxford Advanced American Dictionary entry: terrier