Algometer

Al·gom′e·ter, n. [Gr. ? pain + -meter.] (Psychol.) An instrument for measuring sensations of pain due to pressure. It has a piston rod with a blunted tip which is pressed against the skin. — Al·gom′e·try (#), n. — Al′go·met′ric (#), ·met′ric·al (#), a. — Al′go·met′ric·al·ly, adv.