Examples from the Web for diphyodont
A very general feature of the teeth of the Mammalia is what is usually termed the diphyodont dentition.The Cambridge Natural History, Vol X., Mammalia|Frank Evers Beddard
The majority of mammals have only two sets of teeth, and are said to be diphyodont; some have only a single series (monophyodont).
The Insectivora are diphyodont and heterodont, having well-developed rooted teeth.
The teeth are markedly heterodont and diphyodont, and the molars have broad crowns with tuberculated or ridged surfaces.
The "grinders" in man, or the teeth in diphyodont Mammals which are not preceded by milk-teeth.The Ancient Life History of the Earth|Henry Alleyne Nicholson