(on an aircraft carrier) the last-minute signaling to an aircraft making its final landing approach that it is not to land on that particular pass but is to go around and come in again.
the postponement of a scheduled landing, as of a space shuttle, due to bad weather anticipated at the landing site.
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British Dictionary definitions for waveoff
a signal or instruction to an aircraft not to land
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