Definition of "photic" []

• Of or relating to light. (adjective)
• Penetrated by or receiving light. (adjective)
• Designating or relating to the layer of a body of water that is penetrated by sufficient sunlight for photosynthesis: the photic zone of the ocean. (adjective)

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.

• "Sneezing as the result of being exposed to a bright light-known as the photic sneeze reflex-is a genetic quirk that is still unexplained by science, even though it has intrigued some of history's greatest minds."
• "One and Three Photographs [Ety.] stands out within this series because it makes photography the subject of this inquiry and because the term used to verbally represent the photograph is "photic," which means of or related to light."
• "Along with genetic analysis of a variety of other traits (such as photic sneeze) Eriksson presented data on two novel regions significantly associated with hair curl, one close to the the abstract for details)."