leaf

¹ American  

[leef] / lif /

noun

plural

leaves

1. one of the expanded, usually green organs borne by the stem of a plant.

2. any similar or corresponding lateral outgrowth of a stem.

3. a petal.

   a rose leaf.

4. leaves collectively; foliage.

5. Bibliography. a unit generally comprising two printed, blank, or illustrated pages of a book, one on each side.

6. a thin sheet of metal.

   silver leaf.

7. a lamina or layer.

8. a sliding, hinged, or detachable flat part, as of a door or tabletop.

9. a section of a drawbridge.

10. a single strip of metal in a leaf spring.

11. a tooth of a small gear wheel, as of a pinion.

12. leaf fat.

13. Textiles. shaft.

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verb (used without object)

1. to put forth leaves.

2. to turn pages, especially quickly (usually followed bythrough ).

   to leaf through a book.

verb (used with object)

1. to thumb or turn, as the pages of a book or magazine, in a casual or cursory inspection of the contents.

idioms

1. in leaf, covered with foliage; having leaves.

   the pale green tint of the woods newly in leaf.

2. take a leaf out of / from someone's book, to follow someone's example; imitate.

   Some countries that took a leaf out of American industry's book are now doing very well for themselves.

3. turn over a new leaf, to begin anew; make a fresh start.

   Every New Year's we make resolutions to turn over a new leaf.

Leaf ² American  

[leef] / lif /

noun

1. Munro 1905–76, U.S. author and illustrator of books for children.

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leaf British  

/ liːf /

noun

1. the main organ of photosynthesis and transpiration in higher plants, usually consisting of a flat green blade attached to the stem directly or by a stalk

2. foliage collectively

3. (of shrubs, trees, etc) having a full complement of foliage leaves

4. one of the sheets of paper in a book

5. a hinged, sliding, or detachable part, such as an extension to a table

6. metal in the form of a very thin flexible sheet

   gold leaf

7. a foil or thin strip of metal in a composite material; lamina

8. short for leaf spring

9. the inner or outer wall of a cavity wall

10. a crop that is harvested in the form of leaves

11. a metal strip forming one of the laminations in a leaf spring

12. a slang word for marijuana

13. to imitate someone, esp in one particular course of action

14. to begin a new and improved course of behaviour

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verb

1. to turn (through pages, sheets, etc) cursorily

2. (intr) (of plants) to produce leaves

leaf Scientific  

/ lēf /

1. An appendage growing from the stem of a plant. Leaves are extremely variable in form and function according to species. For example, the needles of pine trees, the spines of cacti, and the bright red parts of the poinsettia plant are all leaves modified for different purposes. However, most leaves are flat and green and adapted to capturing sunlight and carbon dioxide for photosynthesis. They consist of an outer tissue layer (the epidermis) through which water and gases are exchanged, a spongy inner layer of cells that contain chloroplasts, and veins that supply water and minerals and carry out food. Some leaves are simple, while others are compound, consisting of multiple leaflets. The flat part of the leaf, the blade, is often attached to the stem by a leafstalk.

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leaf More Idioms  

More idioms and phrases containing leaf

• quake in one's boots (like a leaf)
• take a leaf out of someone's book
• turn over a new leaf

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Other Word Forms

• leafless adjective
• leaflessness noun
• leaflike adjective
• unleaf verb (used with object)
• unleaflike adjective

Etymology

Origin of leaf

First recorded before 900; Middle English leef, lef, Old English lēaf; cognate with Dutch loof, German Laub, Old Norse lauf, Gothic laufs

Example Sentences

"In India, it's said that the bride enters the husband's home carried on a palanquin and that she leaves only after her death, carried out on a funeral bier," Rao told the BBC.

From BBC

Pezeshkian's apology leaves room for several interpretations: a genuine attempt to calm regional tensions, a tactical move to buy time for Iran's interim leadership, or the opening signal of a political repositioning inside Tehran itself.

From BBC

This step leaves behind the extracellular matrix, which is the natural framework that surrounds cells in tissues and provides both structural support and biological signals.

From Science Daily

To be fair, Altman, too, voices concerns, but in an almost gee-whiz wonderment that leaves no doubt he’s on the side of the robot.

From The Wall Street Journal

He hopes the harrowing journey leaves a lasting impression on viewers.

From BBC

Related Words

• frond
• needle
• petal
• stalk