adjective Zoology.
having two successive sets of teeth, as most mammals.

1850–55; < Greek diphy(ḗs) double, twofold (di- di-1 + -phyēs, derivative of phyḗ growth, nature, derivative of phȳ́ein to produce, grow) + -odont

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World English Dictionary
diphyodont (ˈdɪfɪəʊˌdɒnt)
Compare polyphyodont having two successive sets of teeth, as mammals (including man)
[C19: from Greek diphuēs double (see diphycercal) + -odont]

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Medical Dictionary

diphyodont di·phy·o·dont (dī-fī'ə-dŏnt')
Developing two successive sets of teeth, one deciduous and one permanent, as in humans. n.
A diphyodont animal.

The American Heritage® Stedman's Medical Dictionary
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Example sentences for diphyodont
Mammals are diphyodont, meaning that they develop two sets of teeth.
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