Definition of "eyeshine" [eyeshine]

• The glow reflected from the eyes of some animals when struck by light in dark surroundings. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The effect you are referring to is called eyeshine yet the phenomenon behind it is caused by light amplification within the eye of an organism with a tapetum lucidium layer."
• "They also have the ability to see at night and a facility known as eyeshine or tapetum lucidum."
• "Riddick possess a unique talent known as 'eyeshine', which allows him to see naturally in the dark (players of"