Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The upper angle between a lateral organ, such as a leafstalk, and the stem that bears it.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The angle or point of divergence between the upper side of a branch, leaf, or petiole, and the stem or branch from which it springs.

from the GNU version of the Collaborative International Dictionary of English

  • n. The angle or point of divergence between the upper side of a branch, leaf, or petiole, and the stem or branch from which it springs.

from The Century Dictionary and Cyclopedia

  • n. The armpit, or axilla (which see).
  • n. In botany, the angle formed between the upper side of a leaf and the stem or branch to which it is attached; in cryptogams, the angle formed by the branching of a frond.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the upper angle between an axis and an offshoot such as a branch or leafstalk

Etymologies

Latin axilla, armpit.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin axilla. (Wiktionary)

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