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1. Meteorol (of the sky) more than 95 per cent cloud-covered
2. Meteorol the state of the sky when more than 95 per cent of it is cloud-covered
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Pertaining to a sky cover of 1.0 (95% or more) when at least a portion of this amount is attributable to clouds or obscuring phenomena aloft, that is, when the total sky cover is not due entirely to surface-based obscuring phenomena.
Cloud layer that covers most or all of the sky; generally, a widespread layer of clouds such as that which is considered typical of a warm front.
An enclosed airway to permit one air current to pass over another without interruption.
To move overburden removed from coal mined from surface mines to an area from which the coal has been mined.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
As it relates to the cloud amount, it means 8 octas (8/8) of clouds, and the sky is totally covered with clouds. See cloud amount.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved