Heterodont vs. Diphyodont

Heterodont and Diphyodont Definitions
Heterodont
(zootomy) Having teeth of different types (like most mammals).
Diphyodont
Having two successive sets of teeth, deciduous and permanent.
Heterodont
(malacology) Of bivalves or their hinge teeth: having two to three wedge-shaped cardinal teeth set in the centre near the umbones, generally also with elongated lateral teeth on the anterior and posterior margins.
The heterodont arrangement is characteristic of the Venus clams and cockles.
Diphyodont
(anatomy) Having two successive sets of teeth (deciduous and permanent), one succeeding the other.
A diphyodont mammal; diphyodont dentition
Heterodont
(zoology) A heterodont animal.
Diphyodont
Any creature with two successive sets of teeth.
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Heterodont
(malacology) A heterodont bivalve.
Diphyodont
Having two successive sets of teeth (deciduous and permanent), one succeeding the other; as, a diphyodont mammal; diphyodont dentition; - opposed to monophyodont.
Heterodont
A snake of the genus Heterodon which is native to North America.
Heterodont
Having the teeth differentiated into incisors, canines, and molars, as in man; - opposed to homodont.
Heterodont
Any animal with heterodont dentition.