base jumping

British

noun

a sport in which a participant parachutes from any of a variety of fixed objects such as high buildings, cliffs, etc

"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

Etymology

Origin of base jumping

C20: b ( uilding ), a ( ntennae ), s ( pan , and ) e ( arthbound object )

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023