hamartoma

ham·ar·to·ma

noun \ˌham-ˌar-ˈtō-mə\

plural ham·ar·to·mas also ham·ar·to·ma·ta \-mət-ə\

Definition of HAMARTOMA

: a mass resembling a tumor that represents anomalous development of tissue natural to a part or organ rather than a true tumor

—ham·ar·toma·tous \-ˈtäm-ət-əs, -ˈtōm-\ adjective