The Collaborative International Dictionary
Nephelodometer
Nephelodometer \Neph`e*lo*dom"e*ter\ (n[e^]f`[-e]*l[-o]*d[o^]m"[-e]*t[~e]r), n. [Gr. nefe`lh a cloud + "odo`s way + -meter.] (Meteorol.) An instrument for reckoning the distances or velocities of clouds.