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Einstein

American  
[ahyn-stahyn, ahyn-shtahyn] / ˈaɪn staɪn, ˈaɪnˌʃtaɪn /

noun

  1. Albert 1879–1955, German physicist, U.S. citizen from 1940: formulator of the theory of relativity; Nobel Prize 1921.

  2. Alfred 1880–1952, German musicologist in U.S.

  3. (lowercase) a unit of radiant energy, equal to the energy of radiation that is capable of photochemically changing one mol of a photosensitive substance.

Einstein British  
/ ˈaɪnstaɪn /

noun

  1. Albert. 1879–1955, US physicist and mathematician, born in Germany. He formulated the special theory of relativity (1905) and the general theory of relativity (1916), and made major contributions to the quantum theory, for which he was awarded the Nobel prize for physics in 1921. He was noted also for his work for world peace

"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
Einstein Scientific  
/ īn′stīn′ /

  1. German-born American theoretical physicist whose theories of Special Relativity (1905) and General Relativity (1916) revolutionized modern thought on the nature of space and time and formed a theoretical base for the exploitation of atomic energy. He won the 1921 Nobel Prize for physics for his explanation of the photoelectric effect.

Other Word Forms

  • Einsteinian adjective

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Did Albert Einstein need extra help with physics?

From Literature

It is the clearest gravitational wave signal ever recorded from a pair of merging black holes, giving researchers an unusually sharp tool for testing Albert Einstein's theory of gravity, called general relativity.

From Science Daily

This structure can redirect electron motion, closely resembling how Einstein's theory of gravity describes the bending of light.

From Science Daily

“Reading Einstein instead of doing your homework. You missed the easy stuff.”

From Literature

Nakaya is also a senior researcher at Einstein Israelite Hospital and a professor at the University of São Paulo's School of Pharmaceutical Sciences.

From Science Daily

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.