[neph.e.lom.e.ter] n [Gk nephele cloud + ISV -meter] (1884) 1: an instrument for measuring the extent or degree of cloudiness
2: an instrument for determining the concentration or particle size of suspensions by means of transmitted or reflected light -- neph.e.lo.met.ric adj -- neph.e.lo.met.ri.cal.ly adv -- neph.e.lom.e.try n