Bitch:

Adult female dogs.

Crossbred:

This term is used to describe a dog that has parents of different breeds.

Heinz 57:

This is used to describe a dog which is a mix of many different breeds.

Mongrel:

This is used to describe a dog of unknown ancestry.

Pedigree:

This is a record of a purebred showing its ancestral line.

Purebred:

This is used to describe a dog which has parents of the same breed.

Studbook:

This is a book in which breeders register the pedigrees of their dogs.