visual purple
Americannoun
noun
"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012Etymology
Origin of visual purple
First recorded in 1895–1900
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In the outer part of the rods the visual purple or rhodopsin is found.
From Project Gutenberg
Is the visual purple more active in monocular than in binocular vision, or what physiological activity is thereby taxed in increased degree?
From Project Gutenberg
It only takes three or four quanta to stimulate the visual purple—a little more actually because of absorption by the eyeball itself.
From Project Gutenberg
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
