(redirected from cleared)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Wikipedia.
Related to cleared: clearer, cleared out, cleared up


1. emptied of freight or cargo
2. (of timber) having a smooth, unblemished surface
3. Showjumping (of a round) ridden without any fences being knocked down or any points being lost


(computer science)
To restore a storage device, memory device, or binary stage to a prescribed state, usually that denoting zero. Also known as reset.
A function key on calculators, to delete an entire problem or just the last keyboard entry.
After United States weather observing practice, the state of the sky when it is cloudless or when the sky cover is less than 0.1 (to the nearest tenth).
To change from a stormy or cloudy weather condition to one of no precipitation and decreased cloudiness.
In marine navigation, to leave or pass safely, as to clear port or clear a shoal.
To give a person a security clearance.
To operate a gun so as to unload it or make certain no ammunition remains; to free a gun of stoppages.


The net distance, free from interruption, between any two surfaces or areas.


i. In air traffic control, it means permitted to take off or land, cleared to carry out other maneuvers, or cleared to proceed under specified conditions. The activity the pilot is cleared to perform is either suffixed to the word clear, as in “clear to take off,” or it is in response to the request by the pilot as when “Permission to take off?” is answered by an air traffic controller's “Clear.”
ii. To rectify stoppage in an automatic weapon. Also to ensure its serviceability as in “clearing guns” (by firing a small burst into the air).
iii. Authorized to carry out any task as in “Clear to alter height” or “Clear to fly radial.”
iv. The area around the aircraft is clear for aircraft starting.
v. In reference to the sky, it is devoid of any clouds as in “clear sky.” The aircraft may also be in between layers but in VMC (visual meteorological conditions). Also means, “A portion of the sky is free or relatively free of clouds.”
vi. To check nearby airspace for safe airwork or maneuvering of aircraft.
vii. To clear an engine. To open the throttle of an idling reciprocating engine in flight to free it from carbon and/or an overrich mixture.
viii. To clear the air, meaning to gain a favorable air situation in a given sector.
ix. To authorize hardware as fit for use.
x. To fly over an obstacle without touching it (i.e., clear of obstacles).


A specification language based on initial algebras.

["An Informal Introduction to Specification Using CLEAR", R.M. Burstall in The Correctness Problem in Computer Science, R.S. Boyer et al eds, Academic Press 1981, pp. 185-213].


(Clearwire Communications, LLC, Bellevue, WA) A wireless Internet service provider (WISP) that offered mobile and fixed WiMAX service under the CLEAR brand. Clearwire merged its WiMAX network with Sprint Nextel's Xohm-branded WiMAX network in 2008, providing download speeds up to 6 Mbps. In 2013, Sprint acquired Clearwire and notified customers that WiMAX would be ended in late 2015. Users not switching to Sprint's 4G service could continue to use 3G if their devices supported both WiMAX and 3G. Clearwire was spun off from Texas-based Sierra Technologies in 1998 and was acquired by Craig McCaw in 2003. See WiMAX and WISP.


Wireless music transmission in the unlicensed 2.4 GHz band. Requiring the Kleer technology in both sending and receiving devices, full 1.411 Mbits/sec CD-quality sound can be sent to headphones and speakers using substantially less power than Bluetooth or Wi-Fi. While Bluetooth and Wi-Fi need at least 20 MHz of bandwidth for music, Kleer uses narrowband 3 MHz channels, which are easier to find in a crowded 2.4 GHz environment. In addition, Kleer can transmit to multiple receivers simultaneously. See aptX.

HearNotes Kleer Stereo
Using Kleer transmission, HearNotes earphones receive separate signals from the transmitter (top), which plugs into any headphone jack. (Images courtesy of HearNotes,
References in periodicals archive ?
* Nationwide in 2005, law enforcement agencies cleared 45.5 percent of violent crimes by arrest or by exceptional means.
Mary Atolagbe emerged as a successful candidate to contest for the post of General Secretary, while Austeen Elewodalu and Juliet Njiowhor were cleared as contestants for the post of Assistant General Secretary.
Pakistan's only weightlifter Usman Rathore cleared a weight of 143kg in the first attempt, 147kg in the second and 152kg in the third attempt of Snatch category, followed by his failure in the first attempt of 175kg but cleared 175kg and 181kg in the second and third attempts to make an aggregated total of 333kg.
New South Wales cleared 100,000 hectares (18 percent) while Tasmania cleared 17,000 hectares (three percent), giving it the highest clearing rate in relation to total land area.
David Skole of the University of New Hampshire in Durham and Compton Tucker of NASA's Goddard Space Flight Center in Greenbelt, Md., studied some 200 Landsat images covering the entire Brazilian Amazon for 1978 and 1988, allowing them to map the extent of forest and cleared land for those two years.
The swap was cleared through LCH.Clearnet's SwapClear, which was the first CCP to launch clearing for inflation-linked swaps, in April this year.
Its clearing members including Citi (NYSE: C), Credit Suisse Securities (Europe) Ltd (NYSE: CS), Goldman Sachs International (NYSE: GS), JP Morgan Securities have cleared CDS instruments through ICE Clear Europe, ICE said.
The new controls protect types of bush that have already been cleared down to 30 per cent or less of their original extent.
government securities are cleared and settled over Fedwire, through a delivery-versus-payment mechanism.
While the total acreage cleared in the smaller countries may pale next to Brazil's deforestation, acreage comparison hides some disturbing facts.
The alternate routes that are set to be cleared are Camia, Progreso, and Gumamela streets, Garcia noted.