Source : Webster's Revised Unabridged Dictionary (1913)

Heterotropal \Het`er*ot"ro*pal\, Heterotropous
\Het`er*ot"ro*pous\, a. [Gr. "etero`tropos turning another way;
   ? other + ? to turn: cf. F. h['e]t['e]rotrope.] (Bot.)
   Having the embryo or ovule oblique or transverse to the
   funiculus; amphitropous. --Gray.