(also allachesthesia)Medicine. Now chieflyhistorical
noun
Originally: displacement of a sensation of touch to a different point on the same side of the body as that to which the stimulus was applied.
Origin
Late 19th century. From ancient Greek ἀλλαχῇ elsewhere (from ἄλλος other + -αχῇ) + -αισθησία (in ἀναισθησία; compare also Hellenistic Greek δυσαισθησία).