Definitions

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

  • adj. Having a shape similar to that of a hand with the fingers extended: palmate antlers; palmate coral.
  • adj. Botany Having three or more veins, leaflets, or lobes radiating from one point; digitate: a palmate leaf.
  • adj. Zoology Having webbed toes, as the feet of many water birds.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having three or more lobes or veins arising from a common point.
  • adj. (leaves) Having more than three leaflets arising from a common point, often in the form of a fan.
  • adj. Having webbed appendage; palmated.
  • adj. Hand-like; shaped like a hand with extended fingers
  • n. A salt or ester of ricinoleic acid; a ricinoleate.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having the shape of the hand; resembling a hand with the fingers spread.
  • adj. Spreading from the apex of a petiole, as the divisions of a leaf, or leaflets, so as to resemble the hand with outspread fingers.
  • adj.
  • adj. Having the anterior toes united by a web, as in most swimming birds; webbed. See Illust. (i) under Aves.
  • adj. Having the distal portion broad, flat, and more or less divided into lobes; -- said of certain corals, antlers, etc.
  • n. A salt of palmic acid; a ricinoleate.

from The Century Dictionary and Cyclopedia

  • Like an open palm; resembling a hand with the fingers extended.
  • Web-footed, as a bird; palmiped; webbed; specifically, of or pertaining to the Palmatæ. Compare semipalmate, totipalmate.
  • In botany, originally, having five lobes, with the midribs diverging from a common center; by later botanists extended to leaves that are lobed or divided so that the sinuses point to or reach the apex of the petiole, somewhat irrespective of the number of lobes. See digitate, and cuts under leaf.

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

  • adj. of a leaf shape; having leaflets or lobes radiating from a common point
  • adj. (of the feet of water birds) having three toes connected by a thin fold of skin

Etymologies

From Latin palmatus ("hand-shaped"), by extension (as palma acquired the meaning "palm tree"), "palm-leaf shaped". (Wiktionary)

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