Clearance
2689568
213413540
2008-05-19T06:09:07Z
Boomtish
519791
A '''clearance''' can refer to:
* in [[engineering]] and [[safety]], a physical [[distance]] or space '''[[Engineering tolerance|tolerance]]''', as in a [[truck]] ([[lorry]]), [[train]] or [[boat]] under a [[bridge]] as well as a train in a [[tunnel]] (see [[structure gauge]] and [[loading gauge]]).
* The [[Insulator (electrical)#Clearance|distance]] between two electrical conductors in a gas medium.
* a '''[[closeout]]''' or '''[[final|final sale]]'''
* an '''[[authorization]]''' or '''[[permission]]''' from an [[authority]], for example:
** in [[aviation]], from [[air traffic control]] for an [[aircraft]] to proceed with a [[takeoff]] or [[landing]], or other action
** a '''[[security clearance]]'''
* in [[medicine]], '''[[clearance (medicine)|clearance]]''' is the rate at which a substance is removed or cleared from the body by the kidneys and/or in [[renal dialysis]].
* in [[finance]], the verification of information between the two brokers in a securities transaction
* in [[Australian rules football]], the clearing of the ball out of a [[ball-up|stoppage]] situation, to the advantage of one team or the other
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[[de:Freigabe]]
[[nl:Klaring (luchtvaart)]]