nephoscope

[ nef-uh-skohp ]

/ ˈnɛf əˌskoʊp /

noun

an instrument for determining the speed and direction of cloud motion.

Nearby words

Origin of nephoscope

First recorded in 1880–85; nepho- + -scope

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nephoscope

The nephoscope (Greek: cloud observer) is an instrument used in determining the directions of movement of clouds.
Practical Exercises in Elementary Meteorology|Robert DeCourcy Ward
To measure the motion of clouds the nephoscope (Fig. 1) is used.
Sounding the Ocean of Air|A. Lawrence Rotch
The directions of movement of clouds are determined by means of the nephoscope.
Practical Exercises in Elementary Meteorology|Robert DeCourcy Ward
Such a horizontal mirror, adapted to measure the direction of motion of clouds, is known as a nephoscope.
Practical Exercises in Elementary Meteorology|Robert DeCourcy Ward

If nephoscope observations are made, the monthly summary may include the mean direction of cloud movement for each month.
Practical Exercises in Elementary Meteorology|Robert DeCourcy Ward

British Dictionary definitions for nephoscope

nephoscope

/ (ˈnɛfəˌskəʊp) /

noun

an instrument for measuring the altitude, velocity, and direction of movement of clouds

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012