Edentulism

Edentulism is the condition of being toothless to at least some degree; it is the result of tooth loss. Loss of some teeth results in partial edentulism, while loss of all teeth results in complete edentulism.

Organisms that never possessed teeth can also be described as edentulous, such as members of the former zoological classification order of Edentata, which included anteaters, sloths and armadillos, all of which possess no anterior teeth and either no or poorly-developed posterior teeth.