nEsthesiometerAn 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.
Century Dictionary and Cyclopedia
nesthesiometerAn instrument for determining the degree of tactile sensibility. It resembles a pair of dividers, having the points or extremities of the legs somewhat blunted. The two points are pressed upon the skin, and the distance between them necessary to their being distinguished as two, as shown on the scale, gives the degree of tactile sensibility of the skin at that spot.
nesthesiometerThe instrument is made in a great variety of forms, all based, however, upon the simple compass pattern. In certain recent instruments the points are attached to rods which press against spiral springs inclosed in the metal tubes which form the legs of the compasses, and a scale is marked upon the front surfaces of the tubes. It is thus possible to read off the amount of pressure exerted in any given application of the points to the cutaneous surface; and the esthesiometer may be used not only to measure the limen of dual impression, equivalences of tactile extent, etc., but also to test the pressure-sensitivity, the depth of sleep, etc. See the extract.
Webster's Revised Unabridged Dictionary
Gr. (see Æsthesia) + -meter,
If great exactitude is desirable, Nothnagel's thermo-esthesiometer should be used.