camphor


camphor
camphoraceous /kam'feuh ray"sheuhs/, adj.camphoric /kam fawr"ik, -for"-/, adj.
/kam"feuhr/, n. Chem., Pharm.
1. a whitish, translucent, crystalline, pleasant-odored terpene ketone, C10H16O, obtained from the camphor tree, used chiefly in the manufacture of celluloid and in medicine as a counter-irritant for infections and in the treatment of pain and itching.
2. any substance having medicinal or aromatic characteristics similar to those of camphor.
[1275-1325; < ML, NL camphora Ar kafur < Malay kapur chalk, lime, camphor; r. ME caumfre < AF < ML]

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Organic compound of the isoprenoid family.

A white, waxy solid with a penetrating, somewhat musty aroma, it is obtained from the wood of the camphor laurel (see laurel family), Cinnamomum camphora (found in Asia), or produced synthetically from oil of turpentine. It has long been used in incense and as a medicinal. Modern applications include use as a plasticizer for cellulose nitrate, as a moth repellent, as a flavouring, in embalming, and in fireworks. Camphorated oil is 20% camphor in olive oil.

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      an organic compound of penetrating, somewhat musty aroma, used for many centuries as a component of incense and as a medicinal. Modern uses of camphor have been as a plasticizer for cellulose nitrate and as an insect repellent, particularly for moths. The molecular formula is C10H16O.

      Camphor occurs in the camphor laurel, Cinnamomum camphora, common in China, Taiwan, and Japan. It is isolated by passing steam through the pulverized wood and condensing the vapours; camphor crystallizes from the oily portion of the distillate and is purified by pressing and sublimation. Since the early 1930s camphor has been made by several processes from the compound α-pinene.

      Camphor belongs to a group of organic compounds defined as terpenoid ketones. The structure and the reactions peculiar to it were important problems of 19th-century organic chemistry. The pure compound is a white, waxy solid that melts at about 178°–179° C (352°–354° F).

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Universalium. 2010.

Look at other dictionaries:

  • Camphor — Cam phor (k[a^]m f[ e]r), n. [OE. camfere, F. camphre (cf. It. canfora, Sp. camfora, alcanfor, LL. canfora, camphora, NGr. kafoyra ), fr. Ar. k[=a]f[=u]r, prob. fr. Skr. karp[=u]ra.] 1. A tough, white, aromatic resin, or gum, obtained from… …   The Collaborative International Dictionary of English

  • camphor — [kam′fər] n. [ME camfre < OFr camphre < ML camfora < Ar kāfūr < Sans karpuraḥ, camphor tree] 1. a volatile, crystalline ketone, C10H16O, with a strong characteristic odor, derived from the wood of the camphor tree or synthetically… …   English World dictionary

  • Camphor — Cam phor, v. t. To impregnate or wash with camphor; to camphorate. [R.] Tatler. [1913 Webster] …   The Collaborative International Dictionary of English

  • camphor — substance extensively used in medicine, early 14c., caumfre, from O.Fr. camphre, from M.L. camfora, from Arabic kafur (Skt. karpuram), from Malay kapur camphor tree. Related: Camphorated …   Etymology dictionary

  • Camphor — Camphor, so v.w. Campher, s.d …   Pierer's Universal-Lexikon

  • camphor — ► NOUN ▪ a white volatile crystalline substance with an aromatic smell and bitter taste, occurring in certain essential oils. ORIGIN Latin camphora, from Sanskrit …   English terms dictionary

  • Camphor — For other uses, see Camphor (disambiguation). Camphor[1][2] …   Wikipedia

  • camphor — kamparinis cinamonas statusas T sritis vardynas apibrėžtis Lauramedinių šeimos medieninis, vaistinis augalas (Cinnamomum camphora), iš kurio gaunamas eterinis aliejus. Paplitęs rytų Azijoje. atitikmenys: lot. Cinnamomum camphora; Laurus camphora… …   Lithuanian dictionary (lietuvių žodynas)

  • camphor — A substance that comes from the wood and bark of the camphor tree or is made in the laboratory. It has a very unique smell and taste and is used in commercial products (for example, mothballs). Camphor is used in topical anti infective and anti… …   English dictionary of cancer terms

  • camphor — noun Etymology: Middle English caumfre, from Anglo French, from Medieval Latin camphora, from Arabic kāfūr, from Malay kapur Date: 14th century a tough gummy volatile aromatic crystalline compound C10H16O obtained especially from the wood and… …   New Collegiate Dictionary


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