| 释义 |
charcoal
char·coal C0247400 (chär′kōl′)n.1. A black, porous, carbonaceous material, 85 to 98 percent carbon, produced by the destructive distillation of wood and used as a fuel, filter, and adsorbent.2. a. A drawing pencil or crayon made from this material.b. A drawing executed with such a pencil or crayon.3. A dark grayish brown to black or dark purplish gray.tr.v. char·coaled, char·coal·ing, char·coals 1. To draw, write, or blacken with a black, carbonaceous material.2. To charbroil.
[Middle English charcol : char (perhaps from Old French charbon, from Latin carbō; see carbon) + col, charcoal, coal; see coal.]charcoal (ˈtʃɑːˌkəʊl) n1. (Elements & Compounds) a black amorphous form of carbon made by heating wood or other organic matter in the absence of air: used as a fuel, in smelting metal ores, in explosives, and as an absorbent. See activated carbon2. (Art Terms) a stick or pencil of this for drawing3. (Art Terms) a drawing done in charcoal4. (Colours) short for charcoal greyvb (Art Terms) (tr) to write, draw, or blacken with charcoal[C14: from char (origin obscure) + coal]char•coal (ˈtʃɑrˌkoʊl)
n. 1. the carbonaceous material obtained by heating an organic substance, as wood, in the absence of air. 2. a drawing pencil of charcoal. 3. a drawing made with charcoal. v.t. 4. to draw or blacken with charcoal. 5. to cook over a charcoal fire, esp. on a grill. [1300–50; Middle English charcole] char′coal′y, adj. char·coal (chär′kōl′) A black porous form of carbon produced by heating wood or bone in little or no air. Charcoal is used as a fuel, for drawing, and in air and water filters.charcoal
Past participle: charcoaled
Gerund: charcoaling
| Imperative |
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| charcoal | | charcoal |
| Present |
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| I charcoal | | you charcoal | | he/she/it charcoals | | we charcoal | | you charcoal | | they charcoal |
| Preterite |
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| I charcoaled | | you charcoaled | | he/she/it charcoaled | | we charcoaled | | you charcoaled | | they charcoaled |
| Present Continuous |
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| I am charcoaling | | you are charcoaling | | he/she/it is charcoaling | | we are charcoaling | | you are charcoaling | | they are charcoaling |
| Present Perfect |
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| I have charcoaled | | you have charcoaled | | he/she/it has charcoaled | | we have charcoaled | | you have charcoaled | | they have charcoaled |
| Past Continuous |
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| I was charcoaling | | you were charcoaling | | he/she/it was charcoaling | | we were charcoaling | | you were charcoaling | | they were charcoaling |
| Past Perfect |
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| I had charcoaled | | you had charcoaled | | he/she/it had charcoaled | | we had charcoaled | | you had charcoaled | | they had charcoaled |
| Future |
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| I will charcoal | | you will charcoal | | he/she/it will charcoal | | we will charcoal | | you will charcoal | | they will charcoal |
| Future Perfect |
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| I will have charcoaled | | you will have charcoaled | | he/she/it will have charcoaled | | we will have charcoaled | | you will have charcoaled | | they will have charcoaled |
| Future Continuous |
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| I will be charcoaling | | you will be charcoaling | | he/she/it will be charcoaling | | we will be charcoaling | | you will be charcoaling | | they will be charcoaling |
| Present Perfect Continuous |
|---|
| I have been charcoaling | | you have been charcoaling | | he/she/it has been charcoaling | | we have been charcoaling | | you have been charcoaling | | they have been charcoaling |
| Future Perfect Continuous |
|---|
| I will have been charcoaling | | you will have been charcoaling | | he/she/it will have been charcoaling | | we will have been charcoaling | | you will have been charcoaling | | they will have been charcoaling |
| Past Perfect Continuous |
|---|
| I had been charcoaling | | you had been charcoaling | | he/she/it had been charcoaling | | we had been charcoaling | | you had been charcoaling | | they had been charcoaling |
| Conditional |
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| I would charcoal | | you would charcoal | | he/she/it would charcoal | | we would charcoal | | you would charcoal | | they would charcoal |
| Past Conditional |
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| I would have charcoaled | | you would have charcoaled | | he/she/it would have charcoaled | | we would have charcoaled | | you would have charcoaled | | they would have charcoaled |
Thesaurus| Noun | 1. |  charcoal - a carbonaceous material obtained by heating wood or other organic matter in the absence of airwood coalatomic number 6, carbon, C - an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compoundsfuel - a substance that can be consumed to produce energy; "more fuel is needed during the winter months"; "they developed alternative fuels for aircraft" | | 2. | charcoal - a stick of black carbon material used for drawingfusainwriting implement - an implement that is used to write | | 3. | charcoal - a very dark grey colorcharcoal gray, charcoal grey, oxford gray, oxford greygray, grayness, greyness, grey - a neutral achromatic color midway between white and black | | 4. | charcoal - a drawing made with a stick of black carbon materialdrawing - a representation of forms or objects on a surface by means of lines; "drawings of abstract forms"; "he did complicated pen-and-ink drawings like medieval miniatures" | | Verb | 1. | charcoal - draw, trace, or represent with charcoalartistic creation, artistic production, art - the creation of beautiful or significant things; "art does not need to be innovative to be good"; "I was never any good at art"; "he said that architecture is the art of wasting space beautifully"draw - represent by making a drawing of, as with a pencil, chalk, etc. on a surface; "She drew an elephant"; "Draw me a horse" | | Adj. | 1. | charcoal - of a very dark greycharcoal-gray, charcoal-greyachromatic, neutral - having no hue; "neutral colors like black or white" |
Translationscharcoal (ˈtʃaːkəul) noun the black part of partly burned wood etc, used as fuel and for drawing. 木炭 木炭charcoal
charcoal, substance obtained by partial burning or carbonization (destructive distillationdistillation,
process used to separate the substances composing a mixture. It involves a change of state, as of liquid to gas, and subsequent condensation. The process was probably first used in the production of intoxicating beverages.
..... Click the link for more information. ) of organic material. It is largely pure carboncarbon
[Lat.,=charcoal], nonmetallic chemical element; symbol C; at. no. 6; interval in which at. wt. ranges 12.0096–12.0116; m.p. about 3,550°C;; graphite sublimes about 3,375°C;; b.p. 4,827°C;; sp. gr. 1.8–2.1 (amorphous), 1.9–2.3 (graphite), 3.
..... Click the link for more information. . The entry of air during the carbonization process is controlled so that the organic material does not turn to ash, as in a conventional fire, but decomposes to form charcoal. The most common variety of charcoal, wood charcoal, was formerly prepared by piling wood into stacks, covering it with earth or turf, and setting it on fire. In this process volatile compounds in the wood (e.g., water) pass off as vapors into the air, some of the carbon is consumed as fuel, and the rest of the carbon is converted into charcoal. In the modern method, wood is raised to a high temperature in an iron retort, and industrially important byproducts, e.g., methanolmethanol,
methyl alcohol,
or wood alcohol,
CH3OH, a colorless, flammable liquid that is miscible with water in all proportions. Methanol is a monohydric alcohol. It melts at −97.8°C; and boils at 67°C;.
..... Click the link for more information. (wood alcohol or wood spirit), acetoneacetone
, dimethyl ketone
, or 2-propanone
, CH3COCH3, colorless, flammable liquid. Acetone melts at −94.8°C; and boils at 56.2°C;. It is the simplest aliphatic ketone.
..... Click the link for more information. , pyroligneous acidpyroligneous acid
, a dark liquid that is essentially a mixture of acetic acid and methanol (wood alcohol) and is obtained in the destructive distillation of wood. It once served as a commercial source of acetic acid.
..... Click the link for more information. , and acetic acidacetic acid
, CH3CO2H, colorless liquid that has a characteristic pungent odor, boils at 118°C;, and is miscible with water in all proportions; it is a weak organic carboxylic acid (see carboxyl group). Glacial acetic acid is concentrated, 99.
..... Click the link for more information. , are saved by condensing them to their liquid form. Air is not really needed in the carbonization process, and advanced methods of charcoal production do not allow air to enter the kiln. This results in a higher yield, since no wood is burned with the air, and quality is improved. Charcoal is also obtained from substances other than wood such as nut shells and bark; that obtained from bones is called bone black, animal black, or animal charcoal. Charcoal yields a larger amount of heat in proportion to its volume than is obtained from a corresponding quantity of wood and has the further advantage of being smokeless. The greatest amount is used as a fuel. Charcoal is often used in blacksmithing, for cooking, and for other industrial applications. One of the most important applications of wood charcoal is as a component of gunpowdergunpowder,
explosive mixture; its most common formula, called "black powder," is a combination of saltpeter, sulfur, and carbon in the form of charcoal. Historically, the relative amounts of the components have varied.
..... Click the link for more information. . It is also used as a reducing agent in metallurgical operations, but this application was diminished by the introduction of cokecoke,
substance obtained by the destructive distillation of bituminous coal. Coke bears the same relation to coal as does charcoal to wood. A hard, gray, massive, porous fuel, coke is the solid residue remaining after bituminous coal is heated to a high temperature out of
..... Click the link for more information. . A limited quantity is made up into the form of drawing crayon. Bamboo charcoal is the principal ingredient in sumi-e, a form of Japanese ink painting that uses only black ink in various concentrations. Because of its porous structure, finely divided charcoal is a highly efficient agent for filtering the adsorption of gases and of solids from solution. It is used in sugar refining, in water purification, in the purification of factory air, and in gas masks. Wood charcoal can remove coloring agents from solutions, but this is accomplished more efficiently by animal charcoal. By special heating or chemical processes the adsorptive property can be greatly increased; charcoal so treated is known as activated charcoal. Charcoal a drawing material made from charred wood, mainly twigs or sticks of linden, willow, and other trees. Hard pressed charcoal, made from charcoal powder with an added gum, became popular in the 19th century. Charcoal is widely used for finished drawings and preliminary sketches. It is valued because its stroke has a velvety texture and because it combines lines and tonal effects. charcoal[′chär‚kōl] (materials) Also known as char. A porous solid product containing 85-98% carbon and produced by heating carbonaceous materials such as cellulose, wood, or peat at 500-600°C in the absence of air. The residue obtained from the carbonization of a noncoking coal, such as subbituminous coal, lignite, or anthracite. low-temperature coke charcoal1. a black amorphous form of carbon made by heating wood or other organic matter in the absence of air: used as a fuel, in smelting metal ores, in explosives, and as an absorbent 2. a stick or pencil of this for drawing 3. a drawing done in charcoal charcoal
charcoal [chahr´kōl] carbon prepared by charring wood or other organic material.activated charcoal the residue of destructive distillation of various organic materials, treated to increase its adsorptive power; used as a general purpose antidote.char·coal (char'kōl), Carbon obtained by heating or burning wood with restricted access of air. Synonym(s): carbocharcoal (1) Activated charcoal.
(2) Carbo veg; Carbo vegitabilis.char·coal (chahr'kōl) Carbon obtained by heating or burning wood with restricted access of air. charcoal A black substance formed by heating wood in an atmosphere of restricted oxygen. Charcoal is a powerful adsorber of gases and of fine particulate matter and can be used as an antidote to various poisons, a deodorant, a filter and a remover of intestinal gas. Activated charcoal has been treated to increased its adsorptive properties. It is on the WHO official list.char·coal (chahr'kōl) Carbon obtained by heating or burning wood with restricted access of air. charcoal
Related to charcoal: activated charcoalSynonyms for charcoalnoun a carbonaceous material obtained by heating wood or other organic matter in the absence of airSynonymsRelated Words- atomic number 6
- carbon
- C
- fuel
noun a stick of black carbon material used for drawingSynonymsRelated Wordsnoun a very dark grey colorSynonyms- charcoal gray
- charcoal grey
- oxford gray
- oxford grey
Related Wordsnoun a drawing made with a stick of black carbon materialRelated Wordsverb draw, trace, or represent with charcoalRelated Words- artistic creation
- artistic production
- art
- draw
adj of a very dark greySynonyms- charcoal-gray
- charcoal-grey
Related Words |