stethoscopical

from The Collaborative International Dictionary of English v.0.48

Stethoscopic \Steth`o*scop"ic\, Stethoscopical
\Steth`o*scop"ic*al\, a. [Cf. F. st['e]thoscopique.]
   Of or pertaining to a stethoscope; obtained or made by means
   of a stethoscope. -- {Steth`o*scop"ic*al*ly}, adv.
   [1913 Webster]