VISIBILITY METER

Domain	Definition
Aerospace	The general term for instruments used to make direct measurements of visual range in the atmosphere or of the physical characteristics of the atmosphere which determine the visual range.Visibility meters may be classified according to the quantities that they measure. Telephotometers and transmissometers measure the transmissivity or alternatively, the extinction coefficient of the atmosphere. Nephelometers measure the scattering function of the atmospheric suspensoids. A third category of visibility meters makes use of an artificial haze of variable density which is used to obscure a marker at a fixed distance from the meter. (references)
Source: compiled by the editor from various references; see credits.

Anagrams: VISIBILITY METER

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "b-e-e-i-i-i-i-l-m-r-s-t-t-v-y"
	-5 letters: embrittles, risibility, trembliest, virilities, visibility.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.