(redirected from clearness)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Idioms, Wikipedia.


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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005


(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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


The net distance, free from interruption, between any two surfaces or areas.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.


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).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved


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].
This article is provided by FOLDOC - Free Online Dictionary of Computing (


(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,
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
From Figure 2, it is observed that the minimum clearness index value is observed on 15th of May 2015.
For the international locations, a clearness number of 1 was used with the LCAM 1E solar model.
A call to London got through in some three minutes and thanks to special coils which have been introduced, the voices carried with the ease and clearness which locals experience in talking to one another in the same building.
The detailed performance of the clearness based features with SVM and minimum redundancy maximum relevance features with SVM approach is listed and is also compared with DEFS features.
The methodology for the calculation of the daily clearness index [K.sub.t,d] was first presented by Aguiar et al.
Table 4-18: test components related to individual entrepreneurs in attracting financial resources Conclusions Sig T N Variable Significant 0.00 3.76 110 Seeking success Significant 0.00 2.278 110 Internal locus of control Not significant 0.104 -3.275 110 Risk Not significant 0.518 -3.31 110 Tolerate ambiguity Significant 0.034 3.76 110 Clearness of thought Significant 0.00 4.450 110 Dream Significant 0.04 4.509 110 Pragmatist Significant 0.00 2.490 110 Challenging Conclusion: The above table is only tolerates ambiguity and risk factors are significant in the sense that they do not contribute financial resources to absorb the remaining components meant.
Indeed, we can notably cast doubt on its relevance and clearness because of general public ignorance about it.
He reminds us that clearness of purpose--who you are, what you stand for, what you strive to accomplish--is vital.
Offering a superior moisture barrier compared to similar thickness polyester/poly laminations, it can also incorporate an oxygen barrier to further protect content quality without affecting film clearness of the package or compromising the recycling stream.
Rather gin-centric, Martin Miller's London Dry Gin (pounds 23, 70cl, Majestic) is distilled using pure Icelandic spring water for its sparkling clearness, with 10 botanicals separated into two batches - juniper berries and earthier botanicals in one, and orange and lemon in the second.
where H d is the monthly mean of the daily Diffuse solar radiation and H is the daily total solar radiation and K T is the clearness index.
Part of a series intending to make concepts associated with specific law school course materials easily understandable to upper division law students by emphasizing clearness and conciseness of language and de-emphasizing footnotes, citations, and the like, this volume addresses appeals courts processes and advocacy in the United States.