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:

camphol    
n. 龙脑

龙脑

Borneol \Bor"ne*ol\, n. [Borneo -ol.] (Chem.)
A rare variety of camphor, {C10H17.OH}, resembling ordinary
camphor, from which it can be produced by reduction. It is
said to occur in the camphor tree of Borneo and Sumatra
({Dryobalanops camphora}), but the natural borneol is rarely
found in European or American commerce, being in great
request by the Chinese. Called also {Borneo camphor}, {Malay
camphor}, and {camphol}.
[1913 Webster]


Camphol \Cam"phol\, n. [Camphor -ol.] (Chem.)
See {Borneol}.
[1913 Webster]


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]


请选择你想看的字典辞典:
单词字典翻译
camphol查看 camphol 在百度字典中的解释百度英翻中〔查看〕
camphol查看 camphol 在Google字典中的解释Google英翻中〔查看〕
camphol查看 camphol 在Yahoo字典中的解释Yahoo英翻中〔查看〕





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:


  • Google Docs
    Create and edit web-based documents, spreadsheets, and presentations Store documents online and access them from any computer
  • Google Docs: Sign-in
    Access Google Docs with a personal Google account or Google Workspace account (for business use)
  • Google Drive: Sign-in
    Access Google Drive with a Google account (for personal use) or Google Workspace account (for business use)
  • Google Документы: вход в систему
    Используйте Google Документы в аккаунте Google (для личных целей) или в аккаунте Google Workspace (для бизнеса)
  • Google Documents : connexion
    Accédez à Google Documents avec un compte Google personnel ou un compte Google Workspace (à usage professionnel)
  • Inicia sesión: Cuentas de Google
    ¿No es tu ordenador? Usa una ventana de navegación privada para iniciar sesión Más información sobre cómo usar el modo Invitado
  • Google Docs: Anmelden
    Google Docs kann mit einem privaten Google-Konto oder geschäftlich mit einem Google Workspace-Konto verwendet werden
  • Fazer login nas Contas do Google
    Não está no seu computador? Use uma janela de navegação privada para fazer login Saiba como usar o modo visitante
  • Using Google Documents
    Fabulous Features of Google Docs Session Agenda - bit ly curts-docs 🧔 Presenter Eric Curts Technology Integration Specialist, Google Certified Trainer and Innovator 💡 Eric’s EdTech blog - controlaltachieve com 📧 Email - ericcurts@gmail com - eric curts@apps sparcc org 🐦 Socials:
  • Connexion - Google Docs
    Accédez à Google Docs avec un compte Google personnel ou un compte Google Workspace (à usage professionnel)





中文字典-英文字典  2005-2009