Definition of Leaf

1. Noun. The main organ of photosynthesis and transpiration in higher plants.




2. Verb. Look through a book or other written material. "The customs agents leaf the bags for drugs "; "She leafed through the volume"
Exact synonyms: Flick, Flip, Riff, Riffle, Thumb
Generic synonyms: Peruse

3. Noun. A sheet of any written or printed material (especially in a manuscript or book).
Exact synonyms: Folio
Generic synonyms: Piece Of Paper, Sheet, Sheet Of Paper
Specialized synonyms: Flyleaf, Interleaf, Page
Group relationships: Black And White, Written Communication, Written Language
Derivative terms: Leaflet

4. Verb. Turn over pages. "Leaf a manuscript"
Generic synonyms: Turn, Turn Over

5. Noun. Hinged or detachable flat section (as of a table or door).
Group relationships: Dinner Table
Specialized synonyms: Drop-leaf
Generic synonyms: Section, Segment
Derivative terms: Leaflet

6. Verb. Produce leaves, of plants.
Generic synonyms: Acquire, Develop, Get, Grow, Produce
Derivative terms: Leafage

Definition of Leaf

1. n. A colored, usually green, expansion growing from the side of a stem or rootstock, in which the sap for the use of the plant is elaborated under the influence of light; one of the parts of a plant which collectively constitute its foliage.

2. v. i. To shoot out leaves; to produce leaves; to leave; as, the trees leaf in May.

Definition of Leaf

1. Noun. The usually green and flat organ that represents the most prominent feature of most vegetative plants. ¹

2. Noun. Anything resembling the leaf of a plant. ¹

3. Noun. A sheet of any substance beaten or rolled until very thin. ¹

4. Noun. A sheet of a book, magazine, etc (consisting of two pages, one on each face of the leaf). ¹

5. Noun. (context: in the plural) Tea leaves. ¹

6. Noun. A flat section used to extend the size of a table. ¹

7. Noun. A moveable panel, e.g. of a bridge or door, originally one that hinged but now also applied to other forms of movement. ¹

8. Noun. (botany) A foliage leaf or any of the many and often considerably different structures it can specialise into. ¹

9. Noun. (computing mathematics) In a tree, a node that has no descendants. ¹

10. Noun. The layer of fat supporting the kidneys of a pig, leaf fat. ¹

11. Verb. (intransitive) To produce leaves; put forth foliage. ¹

¹ Source: wiktionary.com

Definition of Leaf

1. a usually green, flattened organ of vascular plants [n LEAVES] / to turn pages rapidly [v -ED, -ING, -S]

Medical Definition of Leaf

1. To shoot out leaves; to produce leaves; to leave; as, the trees leaf in May. Origin: OE. Leef, lef, leaf, AS. Leaf; akin to S. Lf, OFries. Laf, D. Loof foliage, G. Laub,OHG. Loub leaf, foliage, Icel. Lauf, Sw. Lof, Dan. Lov, Goth. Laufs; cf. Lith. Lapas. Cf. Lodge. 1. A coloured, usually green, expansion growing from the side of a stem or rootstock, in which the sap for the use of the plant is elaborated under the influence of light; one of the parts of a plant which collectively constitute its foliage. Such leaves usually consist of a blade, or lamina, supported upon a leafstalk or petiole, which, continued through the blade as the midrib, gives off woody ribs and veins that support the cellular texture. The petiole has usually some sort of an appendage on each side of its base, which is called the stipule. The green parenchyma of the leaf is covered with a thin epiderm pierced with closable microscopic openings, known as stomata. 2. A special organ of vegetation in the form of a lateral outgrowth from the stem, whether appearing as a part of the foliage, or as a cotyledon, a scale, a bract, a spine, or a tendril. In this view every part of a plant, except the root and the stem, is either a leaf, or is composed of leaves more or less modified and transformed. 3. Something which is like a leaf in being wide and thin and having a flat surface, or in being attached to a larger body by one edge or end; as: A part of a book or folded sheet containing two pages upon its opposite sides. A side, division, or part, that slides or is hinged, as of window shutters, folding doors, etc. The movable side of a table. A very thin plate; as, gold leaf. A portion of fat lying in a separate fold or layer. One of the teeth of a pinion, especially when small. Leaf beetle, any beetle which feeds upon leaves; especially, any species of the family Chrysomelidae, as the potato beetle and helmet beetle. Leaf bridge, a draw-bridge having a platform or leaf which swings vertically on hinges. Leaf bud, a sawfiy. To turn over a new leaf, to make a radical change for the better in one's way of living or doing. " They were both determined to turn over a new leaf." (Richardson) Source: Websters Dictionary (01 Mar 1998)

Leaf Pictures

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Lexicographical Neighbors of Leaf

leadplants
leads
leads off
leadscrew
leadscrews
leadsman
leadsmen
leadup
leadups
leadwork
leadworks
leadwort
leadwort family
leadworts
leady
leaf (current term)
leaf-beetle
leaf-beetles
leaf-book
leaf-cutter
leaf-cutter ant
leaf-cutter ants
leaf-cutter bee
leaf-cutting
leaf-cutting ant
leaf-cutting bee
leaf-foot bug
leaf-footed
leaf-footed bug
leaf-green

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