Mammoth Uncensored Word List:
40 words ending with ma, 9 letters long

angiodema carcinoma chondroma condyloma cosmorama cyclorama didrachma diplonema docudrama emphysema empyreuma epirrhema exanthema germinoma grandmama granuloma haematoma hyalonema hybridoma hydrosoma hypoderma leiomyoma melodrama monodrama myriorama myxoedema neurinoma nontrauma papilloma penultima phantasma pinealoma polylemma pranayama protonema subschema syphiloma treponema xeroderma xerostoma