Having two sets of teeth; specifically describes animals with both baby and adult teeth that develop sequentially.
From Latin 'dupli-' (double) combined with 'dens' (tooth), creating a term meaning 'double-toothed'. Primarily used in zoological and anatomical contexts.
Humans are duplicidentate too—we're born with no teeth, grow baby teeth (deciduous), then replace them with adult teeth. This two-stage system is actually an evolutionary advantage!
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