algometer
Al*gom"e*ter, n. [Gr. pain + -meter.] (Psychol.) Defn: 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.