variants: or photo-

Definition of phot-

1 : light : radiant energy photon photography
2 : photograph : photographic photoengraving
3 : photoelectric photocell

History and Etymology for phot-

Greek phōt-, phōto-, from phōt-, phōs — more at fancy

Keep scrolling for more

Learn More about phot-

Statistics for phot-

Cite this Entry

“Phot-.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phot-. Accessed 9 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for phot-

English Language Learners Definition of phot-

: related to light
: relating to photography

phot

noun
\ ˈfōt How to pronounce phot (audio) \

Medical Definition of phot

: the cgs unit of illumination equal to one lumen per square centimeter

Comments on phot-

What made you want to look up phot-? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Star Wars Words Quiz

  • cu jedi training
  • The bounty portion of bounty hunters (such as Boba Fett) comes from a Latin word meaning
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!