adjective (a)

• (of an organ or body part) excessively enlarged as a result of increased size in the constituent cells(adj.all)

  Example:
  Hypertrophied myocardial fibers.
  

  Synonym:
  enlarged
  Antonym:
  atrophied, diminished, wasted
  

  source: wordnet30
• Excessively developed; characterized by hypertrophy.(adjective)

  source: webster1913