Source : Webster's Revised Unabridged Dictionary (1913)

Amphibological \Am*phib`o*log"ic*al\
   ([a^]m*f[i^]b`[-o]*l[o^]j"[i^]*kal), a.
   Of doubtful meaning; ambiguous. ``Amphibological
   expressions.'' --Jer. Taylor. -- {Am*phib`o*log"ic*al*ly},
   adv.