DIPHYODONT
Etymology
Adjective
diphyodont (not comparable)
(anatomy) Having two successive sets of teeth (deciduous and permanent), one succeeding the other.
Noun
diphyodont (plural diphyodonts)
Any creature with two successive sets of teeth.
Source: Wiktionary
Diph"y*o*dont, a. Etym: [Gr. (Anat.)
Definition: Having two successive sets of teeth (deciduous and permanent),
one succeeding the other; as, a diphyodont mammal; diphyodont
dentition; -- opposed to monophyodont.
– n.
Definition: An animal having two successive sets of teeth.
Source: Webster’s Unabridged Dictionary 1913 Edition