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extravehicular

[ek-struh-vee-hik-yuh-ler]
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adjective Aerospace.
  1. of, relating to, or being an activity performed by an astronaut outside a space vehicle while in orbit: an extravehicular activity.

Origin of extravehicular

First recorded in 1960–65; extra- + vehicular
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for extravehicular

extravehicular

adjective
  1. occurring or used outside a spacecraft, either in space or on the surface of the moon or another planetextravehicular activity
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