hibernoma

noun
hi·​ber·​no·​ma | \ ˌhī-bər-ˈnō-mə How to pronounce hibernoma (audio) \
plural hibernomas also hibernomata\ -​mət-​ə How to pronounce hibernomata (audio) \

Medical Definition of hibernoma

: a rare benign tumor that contains fat cells and resembles the brown fat of hibernating mammals