hypertrophy
1. [ noun ] (medicine) abnormal enlargement of a body part or organ
Related terms: dysplasia splenomegaly dactylomegaly elephantiasis giantism acromegaly cor_pulmonale adenomegaly
2. [ verb ] (medicine) undergo hypertrophy
Examples:

"muscles can hypertrophy when people take steroids"

Related terms: grow
Similar spelling:   hypertrophied
  hyperthermy
  hypertext
  hyperthermia
  hyperthermal
  hyperhidrosis