phosphene
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phos·phene
(fŏs′fēn′)n.
A sensation of light caused by excitation of the retina by mechanical or electrical means rather than by light, as when the eyeballs are pressed through closed lids.
[French phosphène : Greek phōs, light; see phos- + Greek phainein, to cause to appear, to show; see bhā- in Indo-European roots.]
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.
phosphene
(ˈfɒsfiːn)n
(Physiology) the sensation of light caused by pressure on the eyelid of a closed eye or by other mechanical or electrical interference with the visual system
[C19: from Greek phōs light + phainein to show]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
phos•phene
(ˈfɒs fin)n.
a luminous visual image produced by mechanical stimulation of the retina, as when pressing on closed eyelids.
[1870–75; < French phosphène, irreg. < Greek phôs light (contraction of pháos) + phaínein to show, shine]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005