base jump

 
Pronunciation: /beɪs ˈdʒʌmp/
(also BASE jump)

noun

  • a parachute jump from a fixed point, typically a high building or promontory, rather than an aircraft.

verb

  • (base-jump) [no object] perform a base jump: he base jumped from the top on to the glacier below

Derivatives

base jumper

noun

base jumping

noun

Origin:

1980s: base from building, antenna-tower, span, earth (denoting the types of structure used)