The Collaborative International Dictionary of English v.0.48:

AEsthesiometer \[AE]s*the`si*om"e*ter\, Esthesiometer
\Es*the`si*om"e*ter\, n. [Gr. ? (see [AE]sthesia) + -meter.]
   An instrument to measure the degree of sensation, by
   determining at how short a distance two impressions upon the
   skin can be distinguished, and thus to determine whether the
   condition of tactile sensibility is normal or altered.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Esthesiometer \Es*the`si*om"e*ter\, n.
   Same as [ae]sthesiometer. Esthetical
   Esthetic
   Esthete