| 释义 |
rosin
ros·in R0310400 (rŏz′ĭn)n. A translucent yellowish to dark brown resin derived from the stumps or sap of various pine trees, composed chiefly of abietic acid and related compounds, and used to increase sliding friction, as on the bows of certain stringed instruments, and to manufacture a wide variety of products including varnishes, inks, linoleum, adhesives, and soldering compounds. Also called colophony.tr.v. ros·ined, ros·in·ing, ros·ins To coat or rub with rosin.
[Middle English, variant of resin; see resin.]
ros′in·y adj.rosin (ˈrɒzɪn) n1. (Elements & Compounds) Also called: colophony a translucent brittle amber substance produced in the distillation of crude turpentine oleoresin and used esp in making varnishes, printing inks, and sealing waxes and for treating the bows of stringed instruments2. (Elements & Compounds) (not in technical usage) another name for resin1vb (Elements & Compounds) (tr) to treat or coat with rosin[C14: variant of resin] ˈrosiny adjros•in (ˈrɒz ɪn)
n. 1. the yellowish to amber, translucent, brittle resin left after distilling the oil of turpentine from the crude oleoresin of the pine: used esp. in making varnishes and for rubbing on the bows of stringed instruments. 2. resin. v.t. 3. to cover or rub with rosin. [1300–50; Middle English < Old French rosine (or < Medieval Latin rosīna), unexplained alter. of resine resin] ros′in•y, adj. rosin
Past participle: rosined
Gerund: rosining
| Present |
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| I rosin | | you rosin | | he/she/it rosins | | we rosin | | you rosin | | they rosin |
| Preterite |
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| I rosined | | you rosined | | he/she/it rosined | | we rosined | | you rosined | | they rosined |
| Present Continuous |
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| I am rosining | | you are rosining | | he/she/it is rosining | | we are rosining | | you are rosining | | they are rosining |
| Present Perfect |
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| I have rosined | | you have rosined | | he/she/it has rosined | | we have rosined | | you have rosined | | they have rosined |
| Past Continuous |
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| I was rosining | | you were rosining | | he/she/it was rosining | | we were rosining | | you were rosining | | they were rosining |
| Past Perfect |
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| I had rosined | | you had rosined | | he/she/it had rosined | | we had rosined | | you had rosined | | they had rosined |
| Future |
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| I will rosin | | you will rosin | | he/she/it will rosin | | we will rosin | | you will rosin | | they will rosin |
| Future Perfect |
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| I will have rosined | | you will have rosined | | he/she/it will have rosined | | we will have rosined | | you will have rosined | | they will have rosined |
| Future Continuous |
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| I will be rosining | | you will be rosining | | he/she/it will be rosining | | we will be rosining | | you will be rosining | | they will be rosining |
| Present Perfect Continuous |
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| I have been rosining | | you have been rosining | | he/she/it has been rosining | | we have been rosining | | you have been rosining | | they have been rosining |
| Future Perfect Continuous |
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| I will have been rosining | | you will have been rosining | | he/she/it will have been rosining | | we will have been rosining | | you will have been rosining | | they will have been rosining |
| Past Perfect Continuous |
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| I had been rosining | | you had been rosining | | he/she/it had been rosining | | we had been rosining | | you had been rosining | | they had been rosining |
| Conditional |
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| I would rosin | | you would rosin | | he/she/it would rosin | | we would rosin | | you would rosin | | they would rosin |
| Past Conditional |
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| I would have rosined | | you would have rosined | | he/she/it would have rosined | | we would have rosined | | you would have rosined | | they would have rosined |
Thesaurus| Noun | 1. |  rosin - any of a class of solid or semisolid viscous substances obtained either as exudations from certain plants or prepared by polymerization of simple moleculesresinEast India kino, Malabar kino, kino gum - reddish or black juice or resin from certain trees of the genus Pterocarpus and used in medicine and tanning etcorganic compound - any compound of carbon and another element or a radicalnatural resin - a plant exudatesynthetic resin - a resin having a polymeric structure; especially a resin in the raw state; used chiefly in plastics | | Verb | 1. | rosin - rub rosin onto; "rosin the violin bow"rub - move over something with pressure; "rub my hands"; "rub oil into her skin" |
Translationsrosin (ˈrozin) noun the hardened resin of some trees, used on the bows of stringed musical instruments. 松香 松香
rosin
rosin or colophony, hard, brittle, translucent resinresin,
any of a class of amorphous solids or semisolids. Resins are found in nature and are chiefly of vegetable origin. They are typically light yellow to dark brown in color; tasteless; odorless or faintly aromatic; translucent or transparent; brittle, fracturing like glass;
..... Click the link for more information. , obtained as a solid residue from crude turpentineturpentine,
yellow to brown semifluid oleoresin exuded from the sapwood of pines, firs, and other conifers. It is made up of two principal components, an essential oil and a type of resin that is called rosin.
..... Click the link for more information. . Usually pale yellow or amber, its color may vary from brownish-black to transparent depending on the nature of the source of the crude turpentine. Rosin has no taste but often has a faint odor of pine. It is soluble in alcohol, ether, turpentine, and several other organic solvents, and in solutions of various metal hydroxides. Rosin is not a pure substance but a mixture of several compounds, chiefly abietic acid. It is used in making cements, varnishes, paints, sealing wax, adhesives, and some soaps; for treating violin bows; as a dressing for machine belting; as a sizing material for paper; in the preparation of certain metals for soldering; and, in pharmacy, in some ointments, plasters, and similar preparations. Athletes commonly rub it (in the form of dust) upon their hands or the soles of their shoes to prevent slipping.Rosin (or colophony), a brittle, vitreous substance varying in color from light yellow to dark red; one of the resinous substances found in pine trees and obtained in the form of residue following distillation of the volatile part from these substances. Rosin has a density of 1.07-1.085 g/cm3 and a softening point of 52°-70°C. A poor conductor of heat and electricity, it dissolves readily in ether and alcohol but is insoluble in water. It is composed of resin acids (80-95 percent) of the general formula C19H29COOH and of neutral unsaponifiable substances (5-12 percent). Rosin is classified according to the type of raw material and to the method of preparation as follows: gum rosin (obtained by distillation of turpentine oil from refined turpentine), wood rosin (obtained by extraction of wood chips from tarred pine stumps using organic solvents, primarily gasoline), and tall oil rosin (obtained by fractional distillation of crude tall oil, a product of sulfate soap refining). Rosin and its derivatives are used in sizing paper and cardboard; as emulsifiers in the manufacture of synthetic rubbers, elastics, plastics, artificial leathers, linoleums, soap, varnishes, paints, and electrical insulating mastics and compounds; and as a flux in the tinning and soldering of metals. REFERENCESVasechkin, V. S. Tekhnologiia ekstraktivnykh veshchestv dereva. Moscow-Leningrad, 1953.
Komshilov, N. F. KanifoV, ee sostav i stroenie smolianykh kislot. Mos-cow, 1965.P. P. POLIAKOV rosin[′räz·ən] (materials) A translucent yellow, umber, or reddish resinous residue from the distillation of crude turpentine from the sap of pine trees (gum rosin) or from an extract of the stumps and other parts of the tree (wood rosin); used in varnishes, lacquers, printing inks, adhesives, and soldering fluxes, in medical ointments, and as a preservative. rosin, colophonyA resin obtained as a residue in the distillation of crude turpentine from the sap of pine trees (gum rosin) or from an extract of the stumps and other parts of them (wood rosin).rosin a translucent brittle amber substance produced in the distillation of crude turpentine oleoresin and used esp in making varnishes, printing inks, and sealing waxes and for treating the bows of stringed instruments See rosin
rosin
rosin [roz´in] the solid resin obtained from species of pines, used in preparation of ointments and plasters, but potentially a cause of contact allergy.ros·in (roz'in), The solid resin obtained after steam distillation of crude balsam from Pinus palustris and from other species of Pinus (family Pinaceae); used in plasters to make them adhere and in ointments to make them locally stimulating. Synonym(s): colophony, resin (2) ros·in (roz'in) The solid resin obtained after steam distillation of crude balsam from species of Pinus; used in plasters to render them adhesive and also in ointments to render them locally stimulating.
Synonym(s): resin (2) . ROSIN
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| ROSIN➣Railway Open System Interconnection Network |
rosin
Synonyms for rosinnoun any of a class of solid or semisolid viscous substances obtained either as exudations from certain plants or prepared by polymerization of simple moleculesSynonymsRelated Words- East India kino
- Malabar kino
- kino gum
- organic compound
- natural resin
- synthetic resin
verb rub rosin ontoRelated Words |