Definition of bullmastiff
: any of a breed of large powerful dogs developed in England by crossing bulldogs with mastiffs
Recent Examples of bullmastiff from the Web
Truman is an elderly bullmastiff with a mind of its own that Julian, with his son at university, considers his second child.
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First Known Use of bullmastiff
Learn More about bullmastiff
Britannica.com: Encyclopedia article about bullmastiff
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