Having teeth in two successive sets, or having two rows of teeth.
From 'dupli-' (double) and Latin 'dentatus' (having teeth), with the suffix '-ate' forming adjectives. The term describes a tooth replacement pattern common in mammals.
While 'duplicidentate' sounds fancy, it's just describing what we call 'diphyodont' in modern biology—mammals that swap out teeth only once in their lifetime, unlike sharks that replace teeth continuously!
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