- the action of an aircraft in becoming airborne or of a rocket in rising from its launching site under its own power.
- the instant when such action occurs.
Informal. the launching or commencement of a project, plan, etc.: The liftoff of the sales campaign will be next month.
that removes by lifting off; capable of being lifted off: a liftoff correction tape for typewriters; magnetized, liftoff nameplates.
- lifting body,
- lifting sail,
- lig snail,
- ligament of head of femur,
Origin of liftoff
First recorded in 1955–60; noun, adj. use of verb phrase lift off
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for liftoff
She watched the liftoff from a boat floating down the Banana River near the launch site in Florida.Moon Men: The Private Lives of Neil Armstrong and Pals in “Togethersville”|Lily Koppel|September 1, 2012|DAILY BEAST
They tell Sandra McElwaine about their orbital road trip ahead of Scott's liftoff this week.
the initial movement or ascent of a rocket from its launch pad
the instant at which this occurs
verb lift off
(intr, adverb) (of a rocket) to leave its launch pad
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
Online Etymology Dictionary, © 2010 Douglas Harper