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Definition of "leaf" []

  • A usually green, flattened, lateral structure attached to a stem and functioning as a principal organ of photosynthesis and transpiration in most plants. (noun)
  • A leaflike organ or structure. (noun)
  • Leaves considered as a group; foliage. (noun)
  • The state or time of having or showing leaves: trees in full leaf. (noun)
  • The leaves of a plant used or processed for a specific purpose: large supplies of tobacco leaf. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "leaf" in a sentence
  • "In a blender, macerate with water, fresh or dried drawing herbs: comfrey root or leaf, marshmallow root, burdock root, and/or plantain leaf*; with fresh or dried antimicrobial herbs: echinacea root, or leaves and flowers, and a fresh clove of garlic; or add a few drops essential oil of thyme to the finished poultice."
  • "The term leaf should only be applied to the foliage."
  • "The first leaf was left blank; the second was the title leaf upon the top of which appeared the name of the Camp Fire, and at the bottom the date of the first council fire; following the title leaf each girl fills out her group of three leaves."