[fot, foht]

noun Optics.

a unit of illumination, equal to 1 lumen per square centimeter. Abbreviation: ph

Origin of phot

1915–20; < Greek phōt-, stem of phôs (contraction of pháos) light



variant of photo- before a vowel: photalgia. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for phot

Historical Examples of phot

  • Phot be yez doin' here, young mon, sn'akin' along like a thafe?

    The Missing Tin Box

    Arthur M. Winfield

British Dictionary definitions for phot



a unit of illumination equal to one lumen per square centimetre. 1 phot is equal to 10 000 lux

Word Origin for phot

C20: from Greek phōs light
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