A Dol is a little-used unit of measurement for pain. The name is from the Latin word for pain, dolor.
James Hardy , Herbert Wolff , and Helen Goodell of Cornell University proposed the unit based on their studies of pain during the 1940s and 1950s; they defined one dol to equal two "just noticeable differences" (jnd's) in pain. The unit did not come into widespread use and other methods are now used to assess the level of pain experienced by patients.
