Stephenson

[ stee-vuh n-suh n ]
/ ˈsti vən sən /

noun

George,1781–1848, English inventor and engineer.
his sonRobert,1803–59, English engineer.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for stephenson

Stephenson

/ (ˈstiːvənsən) /

noun

George. 1781–1848, British inventor of the first successful steam locomotive (1814); constructed the first railway line to carry passengers, the Stockton and Darlington Railway (opened 1825)
his son, Robert. 1803–59, British engineer, noted for his construction of railway bridges and viaducts, esp the tubular bridge over the Menai Strait

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