y-axis(redirected from y-axes)
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X-Y matrixA group of rows and columns. The x-axis is the horizontal row, and the y-axis is the vertical column. An x-y matrix is the reference framework for two-dimensional structures, such as mathematical tables, display screens, digitizer tablets, dot matrix printers and 2D graphics images.
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i. The lateral axis of the aircraft about which an aircraft pitches. Also called the pitch axis, normal axis, z-axis, and yawing axis.
ii. A vertical two-dimensional system of rectangular coordinates. The reference line on which distances above and below (north or south) it are marked, especially on a map, chart, or graph.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved