Leaf \Leaf\ (l[=e]f), n.; pl. {Leaves} (l[=e]vz). [OE. leef, lef, leaf, AS. le['a]f; akin to S. l[=o]f, OFries. laf, D. loof foliage, G. laub, OHG. loub leaf, foliage, Icel. lauf, Sw. l["o]f, Dan. l["o]v, Goth. laufs; cf. Lith. lapas. Cf. {Lodge}.] 1. (Bot.) 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.
Note: 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. (Bot.) 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.
Note: 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) A part of a book or folded sheet containing two pages upon its opposite sides. (b) A side, division, or part, that slides or is hinged, as of window shutters, folding doors, etc. (c) The movable side of a table. (d) A very thin plate; as, gold leaf. (e) A portion of fat lying in a separate fold or layer. (f) One of the teeth of a pinion, especially when small.
{Leaf beetle} (Zo["o]l.), any beetle which feeds upon leaves; esp., any species of the family {Chrysomelid[ae]}, as the potato beetle and helmet beetle.
{Leaf bridge}, a draw-bridge having a platform or leaf which swings vertically on hinges.
{Leaf bud} (Bot.), a bud which develops into leaves or a leafy branch.
{Leaf butterfly} (Zo["o]l.), any butterfly which, in the form and colors of its wings, resembles the leaves of plants upon which it rests; esp., butterflies of the genus {Kallima}, found in Southern Asia and the East Indies.
{Leaf crumpler} (Zo["o]l.), a small moth ({Phycis indigenella}), the larva of which feeds upon leaves of the apple tree, and forms its nest by crumpling and fastening leaves together in clusters.
{Leaf fat}, the fat which lies in leaves or layers within the body of an animal.
{Leaf flea} (Zo["o]l.), a jumping plant louse of the family {Psyllid[ae]}.
{Leaf frog} (Zo["o]l.), any tree frog of the genus {Phyllomedusa}.
{Leaf green}.(Bot.) See {Chlorophyll}.
{Leaf hopper} (Zo["o]l.), any small jumping hemipterous insect of the genus {Tettigonia}, and allied genera. They live upon the leaves and twigs of plants. See {Live hopper}.
{Leaf insect} (Zo["o]l.), any one of several genera and species of orthopterous insects, esp. of the genus {Phyllium}, in which the wings, and sometimes the legs, resemble leaves in color and form. They are common in Southern Asia and the East Indies.
{Leaf lard}, lard from leaf fat. See under {Lard}.
{Leaf louse} (Zo["o]l.), an aphid.
{Leaf metal}, metal in thin leaves, as gold, silver, or tin.
{Leaf miner} (Zo["o]l.), any one of various small lepidopterous and dipterous insects, which, in the larval stages, burrow in and eat the parenchyma of leaves; as, the pear-tree leaf miner ({Lithocolletis geminatella}).
{Leaf notcher} (Zo["o]l.), a pale bluish green beetle ({Artipus Floridanus}), which, in Florida, eats the edges of the leaves of orange trees.
{Leaf roller} (Zo["o]l.), See {leaf roller} in the vocabulary.
{Leaf scar} (Bot.), the cicatrix on a stem whence a leaf has fallen.
{Leaf sewer} (Zo["o]l.), a tortricid moth, whose caterpillar makes a nest by rolling up a leaf and fastening the edges together with silk, as if sewn; esp., {Phoxopteris nubeculana}, which feeds upon the apple tree.
{Leaf sight}, a hinged sight on a firearm, which can be raised or folded down.
{Leaf trace} (Bot.), one or more fibrovascular bundles, which may be traced down an endogenous stem from the base of a leaf.
{Leaf tier} (Zo["o]l.), a tortricid moth whose larva makes a nest by fastening the edges of a leaf together with silk; esp., {Teras cinderella}, found on the apple tree.
{Leaf valve}, a valve which moves on a hinge.
{Leaf wasp} (Zo["o]l.), a sawfly.
{To turn over a new leaf}, to make a radical change for the better in one's way of living or doing. [Colloq.]
They were both determined to turn over a new leaf. --Richardson.
Leaf \Leaf\, Leaf out \Leaf out\(l[=e]f), v. i. [imp. & p. p. {Leafed} (l[=e]ft); p. pr. & vb. n. {Leafing}.] To shoot out leaves; to produce leaves; to leave; as, the trees leaf in May. --Sir T. Browne.
The United States would provide aid to help buy Peru's coca leaf crop under a plan proposed Thursday by the Peruvian ambassador.
The semi-processed coca leaf is flown mainly to Colombia, to the north, where it is refined into pure cocaine.
Peru is the chief producer of coca leaf, the raw material of cocaine.
But those involved in restoration projects face dilemmas: Craftsmen who can do many types of fine restoration work, from gold leaf to ornamental plaster, are hard to find, and many materials used in the buildings are no longer available.
The marijuana stamp doesn't have a picture of a leaf, just the title "Marijuana" at the top, and several lines printed over the state seal where commission employees can fill in the quantity and their initials.
Even last weekend's early snowstorm in the Northeast isn't putting a serious dent in this year's leaf watching.
The house boasts a splendid bathroom where the window frame, shutters, cabinet and water tank are gilded with 23 carat gold leaf.
Sweden takes a leaf out of the UK's book this week with its first auction of index-linked government bonds.
Enaco says all of the coca in the Huallaga valley, where the vast majority of Peru's coca leaf is cultivated, is illegal, but Peru lacks the manpower, equipment and resources to stop it.
In and around Kanazawa, which means "marsh of gold," small factories produce 98 percent of Japan's gold leaf, pounding tiny nuggets into feather-light sheets as big as 18-square-foot tatami mats.
Peru is the world's main source of coca leaf.
The Upper Huallaga is the world's main supplier of coca leaf, the raw material for cocaine.
In recent weeks coca leaf farmers have staged protest marches and threatened roadblocks and confrontations if the Bolivian Congress goes ahead with an anti-narcotics measure that would declare illegal most coca leaf cultivations in the Chapare.
In recent weeks coca leaf farmers have staged protest marches and threatened roadblocks and confrontations if the Bolivian Congress goes ahead with an anti-narcotics measure that would declare illegal most coca leaf cultivations in the Chapare.
In mild gardens or expatriate bunkers, I would go straight for the lovely white Solanum jasminoides, but it will not survive hard winters in open ground on a British arch. White jasmines in Britain are usually rather scruffy, with more leaf than flower.
About 60 percent of the cigarettes went to Asian countries, while Europe traditionally is the largest buyer of leaf, which is used to blend into domestically produced products.
A bug chomps loudly on a leaf; giant bug, monster leaf.
A bug chomps loudly on a leaf; giant bug, monster leaf.
But in Western Europe, imports of U.S. leaf may drop due to declining cigarette use.
The United States provides about $55 million a year for the efforts, which include programs to reduce coca leaf cultivation in Bolivia's jungles.
The nutrients in soil previously used to grow cereals, coupled with annual leaf fall, can replace fertiliser.
This ramshackle jungle settlement has become a boom town in Peru's illicit cocaine trade, luring thousands from city shantytown or impoverished countryside with a promise of quick fortune from the coca leaf.
For instance, halos _ blazing disks of golden light _ are applied in gold leaf around the heads of divine figures to depict emanations of radiant light.
Crack is made by converting coca leaf to cocaine base, to cocaine hydrochloride and then back to a new, cleaner cocaine base.
In Cheektowaga, another Buffalo suburb, Highway Superintendent Christopher Kowal will run seven leaf vacuums for 16 hours a day, seven days a week to keep the streets clean.
Duran said a camp of a development program in the Chapare financed by the U.S. Agency for International Development was overrun by coca leaf farmers.
Mr. Haislip allows Steppan to import enough coca leaf to meet the legal U.S. demand of about 400 kilograms a year.
If there is a persistent, premature leaf drop, check watering practices first.
It thrives on soils which also favour walnuts and is seriously underestimated in Britain. The leaves look like huge versions of a common ash, but they are earlier into leaf and much more emphatic.
At least 350,000 farmers, most of whom live off coca leaf growing and cocaine processing, live in the Chapare, an area about as big as New Jersey.