Source : Webster's Revised Unabridged Dictionary (1913)

Allotriophagy \Al`lo*tri*oph"a*gy\
   ([a^]l`l[-o]*tr[i^]*[o^]f"[.a]*j[y^]), n. [Gr. 'allo`trios
   strange + fagei^n to eat: cf. F. allotriophagie.] (Med.)
   A depraved appetite; a desire for improper food.