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chromosphere

[kroh-muh-sfeer] /ˈkroʊ məˌsfɪər/
noun, Astronomy
1.
a scarlet, gaseous envelope surrounding the sun outside the photosphere, from which enormous quantities of hydrogen and other gases are erupted.
2.
a gaseous envelope surrounding a star.
Origin of chromosphere
1865-1870
1865-70; chromo- + -sphere
Related forms
chromospheric
[kroh-muh-sfer-ik, -sfeer-] /ˌkroʊ məˈsfɛr ɪk, -ˈsfɪər-/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for chromosphere
Historical Examples
  • In the same way as the corona, the chromosphere and prominences were for a time supposed to belong to the moon.

    Astronomy of To-day Cecil G. Dolmage
  • Beneath the chromosphere is the layer of the sun from which emanates the light by which we see it, called the photosphere.

    Astronomy David Todd
  • Slender columns can ordinarily be seen to connect the surface of the chromosphere with its outlying portions.

  • Just above the reversing layer lies the chromosphere, which is between five thousand and ten thousand miles in depth.

    Astronomy for Young Folks Isabel Martin Lewis
  • They are, in fact, thrown up from the chromosphere like gigantic jets of incandescent material.

    The Story of the Heavens Robert Stawell Ball
  • One more picture of prominences (Fig. 80) is introduced to show the continuous stretch of chromosphere out of which they spring.

    A Text-Book of Astronomy George C. Comstock
  • The Corona lies next in order outside the chromosphere, and is, so far as we know, the outermost of the accompaniments of the sun.

    Astronomy of To-day Cecil G. Dolmage
  • The wave-lengths of some 700 lines belonging to the chromosphere and prominences were determined by the British parties.

  • The outer surface of the chromosphere is not by any means even.

    Astronomy of To-day Cecil G. Dolmage
  • These and other gases form a shell round the Sun, about 3000 miles in depth, to which the name "chromosphere" has been given.

    The Science of the Stars E. Walter Maunder
British Dictionary definitions for chromosphere

chromosphere

/ˈkrəʊməˌsfɪə/
noun
1.
a gaseous layer of the sun's atmosphere extending from the photosphere to the corona and visible during a total eclipse of the sun
Derived Forms
chromospheric (ˌkrəʊməˈsfɛrɪk) adjective
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
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Word Origin and History for chromosphere
n.

1868, coined by English astronomer Sir Joseph Norman Lockyer (1836-1920), from chromo-, from Greek khroma "color" (see chroma) + sphere. So called for its redness.

Online Etymology Dictionary, © 2010 Douglas Harper
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chromosphere in Science
chromosphere
  (krō'mə-sfîr')   
A glowing, transparent layer of gas surrounding the photosphere of a star. The Sun's chromosphere is several thousand kilometers thick, is composed mainly of hydrogen at temperatures of 6,000° to 20,000°K, and gives off reddish light.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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