Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Botany The stalk by which a leaf is attached to a stem.
  • noun Zoology A slender, stalklike part, as that connecting the thorax and abdomen in certain insects.

from The Century Dictionary.

  • noun In botany, a leafstalk; the stalk or support by which the blade or limb of a leaf is attached to the stem.
  • noun In entomology, the slender sclerite or sclerites by which the abdomen of many insects is united to the thorax.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Bot.) A leafstalk; the footstalk of a leaf, connecting the blade with the stem. See Illust. of leaf.
  • noun (Zoöl.) A stalk or peduncle.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun botany The stalk of a leaf, attaching the blade to the stem.
  • noun entomology A narrow or constricted segment of the body of an insect. Used especially to refer to the metasomal segment of Hymenoptera such as wasps.
  • noun entomology The stalk at the base of the nest of the paper wasp.

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

  • noun the slender stem that supports the blade of a leaf

Etymologies

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

[Latin petiolus, variant of peciolus, little foot, fruit stalk, probably from *pediciolus, diminutive of pediculus; see pedicel.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From French pétiole, and its source, Latin petiolus ("little foot"), diminuitive form of pes.

Examples

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