ˌhamə(r)ˈtōmə noun
( plural hamartomas or hamartomata )
Etymology: New Latin, from Greek hamartia + New Latin -oma
: a mass resembling a tumor assumed to represent anomalous development of tissue natural to a part or organ rather than a true tumor
• ham·ar·to·ma·tous |hamə(r)|täməd.əs, -tōm- adjective