the platform on which a missile or launch vehicle undergoes final prelaunch checkout and countdown and from which it is launched from the surface of the earth.
something that serves to launch or initiate: He used his legal experience as a launch pad for his career in politics.
Origin of launch pad
First recorded in 1955–60
Also called launching pad, pad.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a platform from which a spacecraft, rocket, etc, is launched
an effective starting point for a career, enterprise, or campaign
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