Es-thē/si-ôm'e-ter, n.

n. [Gr. αἰσθάνεσθαι, to perceive, and μέτρον, measure.] An instrument used to measure the tactile sensibility of the surface of the human body, in health and disease, by finding the shortest distance by which two points can be separated when brought in contact with the body, and yet both be distinctly perceived or felt.