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[fos-feen] /ˈfɒs fin/
noun, Physiology.
a luminous image produced by mechanical stimulation of the retina, as by pressure applied to the eyeball by the finger when the lid is closed.
Origin of phosphene
1870-75; < French phosphène, irregular < Greek phôs light (contraction of pháos) + phaínein to show, shine Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for phosphene


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
Word Origin
C19: from Greek phōs light + phainein to show
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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phosphene in Medicine

phosphene phos·phene (fŏs'fēn')
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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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