The Collaborative International Dictionary of English v.0.48:

Baraesthesiometer \Bar`[ae]s*the`si*om"e*ter\, Baresthesiometer
\Bar`es*the`si*om"e*ter\, n. [Gr. ? weight + [ae]sthesiometer.]
   (Physiol.)
   An instrument for determining the delicacy of the sense of
   pressure. -- Bar`[ae]s*the`si*o*met"ric,
   Bar`es*the`si*o*met"ric, a.
   [Webster 1913 Suppl.]