The Collaborative International Dictionary
Hypertrophical
Hypertrophic \Hy`per*troph"ic\, Hypertrophical \Hy`per*troph"ic*al\, a. [Cf. F. hypertrophique.] (Med. & Biol.) Of or pertaining to hypertrophy; affected with, or tending to, hypertrophy.
Wiktionary
hypertrophical
a. (alternative form of hypertrophic English)