diffraction

noun dif·frac·tion \di-ˈfrak-shən\

Definition of DIFFRACTION

: a modification which light undergoes especially in passing by the edges of opaque bodies or through narrow openings and in which the rays appear to be deflected; also : a similar modification of other waves (as sound waves) or of moving particles (as electrons)

See diffraction defined for kids

Origin of DIFFRACTION

New Latin diffraction-, diffractio, from Latin diffringere to break apart, from dis- + frangere to break — more at break

First Known Use: 1671

Rhymes with DIFFRACTION

abstraction, attraction, bolt-action, class action, compaction, contraction, cross action, detraction, distraction, exaction, extraction, impaction, inaction, infraction, job action, live-action, olfaction, protraction, reaction, redaction, refraction, retraction, stop-action, subtraction, transaction

Medical Dictionary

diffraction

noun dif·frac·tion \dif-ˈrak-shən\

Medical Definition of DIFFRACTION

: a modification which light undergoes in passing by the edges of opaque bodies or through narrow slits or in being reflected from ruled surfaces and in which the rays appear to be deflected and to produce fringes of parallel light and dark or colored bands; also : a similar modification of other waves (as sound waves)