I. (ˈ)dī|fiəˌdänt adjective
Etymology: International Scientific Vocabulary diphy- + -odont
: having deciduous and permanent sets of teeth successively
a diphyodont mammal
also : marked by the development of two such sets
diphyodont dentition
— opposed to monophyodont
II. noun
( -s )
: a diphyodont animal
most mammals are diphyodonts