英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

camphor    
n. 樟树,樟脑

樟树,樟脑

camphor
n 1: a resin obtained from the camphor tree; used in making
celluloid and liniment

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
different species of the {Laurus} family, esp. from
{Cinnamomum camphara} (the {Laurus camphora} of
Linn[ae]us.). Camphor, {C10H16O}, is volatile and
fragrant, and is used in medicine as a diaphoretic, a
stimulant, or sedative.
[1913 Webster]

2. originally, a gum resembling ordinary camphor, obtained
from a tree ({Dryobalanops aromatica} formerly
{Dryobalanops camphora}) growing in Sumatra and Borneo;
now applied to its main constituent, a terpene alcohol
obtainable as a white solid {C10H18O}, called also {Borneo
camphor}, {Malay camphor}, {Malayan camphor}, {camphor of
Borneo}, {Sumatra camphor}, {bornyl alcohol}, {camphol},
and {borneol}. The isomer from {Dryobalanops} is
dextrorotatory; the levoratatory form is obtainable from
other species of plants, and the racemic mixture may be
obtained by reduction of camphor. It is used in perfumery,
and for manufacture of its esters. See {Borneol}.
[1913 Webster PJC]

Note: The name camphor is also applied to a number of bodies
of similar appearance and properties, as {cedar
camphor}, obtained from the red or pencil cedar
({Juniperus Virginiana}), and {peppermint camphor}, or
{menthol}, obtained from the oil of peppermint.
[1913 Webster]

{Camphor oil} (Chem.), name variously given to certain
oil-like products, obtained especially from the camphor
tree.

{Camphor tree}, a large evergreen tree ({Cinnamomum
Camphora}) with lax, smooth branches and shining
triple-nerved lanceolate leaves, probably native in China,
but now cultivated in most warm countries. Camphor is
collected by a process of steaming the chips of the wood
and subliming the product.
[1913 Webster]


Camphor \Cam"phor\, v. t.
To impregnate or wash with camphor; to camphorate. [R.]
--Tatler.
[1913 Webster]



安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • camphor - 76-22-2, C10H16O, density, melting point, boiling point . . .
    camphor - cas 76-22-2, synthesis, structure, density, melting point, boiling point
  • Camphor - Wikipedia
    Camphor ( ˈkæmfər ) is a waxy, colorless solid with a strong aroma [5] derived from the wood of the camphor laurel (Cinnamomum camphora), a large evergreen tree found in East Asia; and in the kapur tree (Dryobalanops sp ), a tall timber tree from South East Asia
  • Camphor - Uses, Side Effects, and More - WebMD
    Learn more about Camphor uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain Camphor
  • What Is Camphor? Health Uses and Precautions
    Camphor oil is an extract from the wood of camphor trees It’s commonly used in creams, ointments, and lotions to relieve pain, irritation, and itching It’s also used to relieve chest
  • Camphor | C10H16O | CID 2537 - PubChem
    Camphor is a cyclic monoterpene ketone that is bornane bearing an oxo substituent at position 2
  • What Is Camphor Used For? 7 Benefits - MedicineNet
    Camphor is a strong-smelling substance that looks like wax It is usually manufactured from turpentine oil and used in products such as VapoRub
  • Camphor | Definition, Formula, Uses, Facts | Britannica
    Camphor, 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 Learn more about camphor in this article
  • Camphor: Uses, Benefits, Cautions – All You Need to Know
    Discover the versatile uses and benefits of camphor, from pain relief to aromatherapy Learn about precautions and side effects
  • Camphor - NYC Health
    Camphor Camphor (alcanfor in Spanish) is a white solid with a strong, fragrant odor There are many reported uses for camphor, including to treat colds and congestion, to protect against illness, for pest control, as an air freshener, and in religious ceremonies Camphor is dangerous to young children and should be kept out of their reach
  • Camphor - The University of Texas at El Paso
    Parts of the plant used: The oil extracted from the tree, although the leaves, root and stems are also used in traditional medicine The production of natural camphor has been replaced mainly by industrial chemical synthesis employing compounds found in turpentine How is it used? The essential oil is diluted in almond oil and applied externally to improve capillary circulation, and raise





中文字典-英文字典  2005-2009