polyphyodont

From Ancient Greek πολύς (polús, “many, much”) + φύω (phúō, “produce”) + ὀδόντος (odóntos) (genitive of ὀδούς (odoús, “tooth”)).

polyphyodont (plural polyphyodonts)

English Wikipedia has an article on:

polyphyodont

Wikipedia

Any animal whose teeth are continuously replaced.
Elephants and manatees are unusual among mammals because they are polyphyodonts. Most mammals are diphyodonts, replacing their teeth only once in their lives.