Mammoth Uncensored Word List:
29 words ending with ma, 10 letters long

adenomyoma adenostoma aerenchyma agrostemma antiasthma barotrauma chromonema epiphonema gastrinoma grandmamma hemangioma insulinoma leucoderma leukoderma lymphedema meningioma mesenchyma mycoplasma myosarcoma neurilemma neurolemma parenchyma periostoma piroplasma plasmosoma rhinophyma sarcolemma staphyloma toxoplasma