hypertrophy

noun
hy·​per·​tro·​phy | \ hī-ˈpər-trə-fē How to pronounce hypertrophy (audio) \
plural hypertrophies

Definition of hypertrophy

 (Entry 1 of 2)

1 biology : excessive development of an organ or part specifically : increase in bulk (as by thickening of muscle fibers) without multiplication of parts cardiac hypertrophy
2 : exaggerated growth or complexity economic hypertrophy