liftoff

noun the initial ascent of a rocket from its launching pad
Found on https://www.encyclo.co.uk/local/20974

liftoff

[n] - the initial ascent of a rocket from its launching pad
Found on http://www.webdictionary.co.uk/definition.php?query=liftoff

liftoff

• The point at which the upward thrust of a spacecraft exceeds the force due to local gravity and the spacecraft begins to leave the ground. • The rising of a spacecraft from its launch pad at the start of its ascent into space.
Found on http://www.daviddarling.info/encyclopedia/L/liftoff.html
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