(1663–1729), English engineer, developer of the first practical steam engine. His beam engine to operate a pump for the removal of water from mines was first erected in Worcestershire in 1712.
Definition of Newcomen, Thomas in US English:
Newcomen, Thomas
proper nounn(y)o͞oˈkəmən
(1663–1729), English engineer; developer of the first practical steam engine—an engine that operated a pump for the removal of water from mines—in 1712.