photonephelometer

photonephelometer

[¦fōd·ō‚nef·ə′läm·əd·ər]
(engineering)
A nephelometer that uses a photocell or phototube to measure the amount of light transmitted by a suspension of particles.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.