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Related to axil: axial
the angle between the upper surface of a branch or leafstalk and the stem from which it grows
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
in plants, the point of divergence between a leaf and a branch. The axils of seed plants usually contain one or more axillary, or lateral, buds, from which may develop a leaf shoot or a branchlet of an inforescence, flower, thorn, or tendril.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
The angle between a structure and the axis from which it arises, especially for branches and leaves.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.