Dictionary entry

Nephelodometer

Webster's Dictionary 1913

Neph′e‐lo‐dom″e‐ter (–lō̍‐dŏm″ē̍‐tẽr), n. [Gr. νεφέλη a cloud + οδὅσ way + -meter.] (Meteorol.) An instrument for reckoning the distances or velocities of clouds.