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Fres·nel(frā-nĕl′), Augustin Jean 1788-1827.
French physicist who supported the wave theory of light, investigated polarized light, and developed a compound lens for use in lighthouses.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Biography) Augustin Jean (oɡystɛ̃ ʒɑ̃). 1788–1827, French physicist: worked on the interference of light, contributing to the wave theory of light
fresnel(ˈfreɪnɛl; French frɛnɛl)
(Units) a unit of frequency equivalent to 1012 hertz
[C20: named after Augustin Jean Fresnel (1788–1827), French physicist]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a unit of frequency equal to 1012 cycles per second.
[1935–40; after Augustin Jean Fresnel (1788–1827), French physicist]
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