direct-vision nephoscope

direct-vision nephoscope

[də¦rekt ¦vizh·ən ′nef·ə‚skōp]

(optics)

A type of nephoscope in which the cloud motion is observed by looking directly into the instrument.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.