Definitions

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

  • adj. Biology Having the shape of an arrowhead: sagittate leaves; sagittate shells.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Shaped like an arrowhead, with one point a one end, and two points at the other.
  • adj. Shaped like an arrowhead, with two pointed lobes extending downward from the base.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Shaped like an arrowhead; triangular, with the two basal angles prolonged downward.

from The Century Dictionary and Cyclopedia

  • Shaped like the head of an arrow; sagittal; specifically, in botany, triangular, with a deep sinus at the base, the lobes not pointing outward. Compare hastate. See also cut under Sagittaria.
  • In entomology, having the form of a barbed arrow-head.

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

  • adj. (of a leaf shape) like an arrow head without flaring base lobes

Etymologies

Latin sagitta, arrow + -ate1.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin sagitta ("arrow"). (Wiktionary)

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