from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Botany The stalk by which a leaf is attached to a stem. Also called leafstalk.
- n. Zoology A slender, stalklike part, as that connecting the thorax and abdomen in certain insects.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The stalk of a leaf, attaching the blade to the stem.
- n. A narrow or constricted segment of the body of an insect. Used especially to refer to the metasomal segment of Hymenoptera such as wasps.
- n. The stalk at the base of the nest of the paper wasp.
from the GNU version of the Collaborative International Dictionary of English
- n. A leafstalk; the footstalk of a leaf, connecting the blade with the stem. See Illust. of leaf.
- n. A stalk or peduncle.
from The Century Dictionary and Cyclopedia
- n. In botany, a leafstalk; the stalk or support by which the blade or limb of a leaf is attached to the stem.
- n. In entomology, the slender sclerite or sclerites by which the abdomen of many insects is united to the thorax.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the slender stem that supports the blade of a leaf
Latin petiolus, variant of peciolus, little foot, fruit stalk, probably from *pediciolus, diminutive of pediculus; see pedicel.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French pétiole, and its source, Latin petiolus ("little foot"), diminuitive form of pes. (Wiktionary)