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：

phlogiston    
n. 燃素,热素

燃素,热素

phlogiston
n 1: a hypothetical substance once believed to be present in all
combustible materials and to be released during burning

Phlogiston \Phlo*gis"ton\ (fl[-o]*j[i^]s"t[o^]n; 277), n. [NL.,
fr. Gr. flogisto`s burnt, set on fire, fr. flogi`zein to set
on fire, to burn, fr. flo`x, flogo`s, a flame, blaze. See
{Phlox}.] (Old Chem.)
The former hypothetical principle of fire, or inflammability,
regarded by Stahl as a chemical element; it is now known to
be nonexistent.
[1913 Webster PJC]

Note: This was supposed to be united with combustible
(phlogisticated) bodies and to be separated from
incombustible (dephlogisticated) bodies, the phenomena
of flame and burning being the escape of phlogiston.
Soot and sulphur were regarded as nearly pure
phlogiston. The essential principle of this theory was,
that combustion was a decomposition rather than the
union and combination which it has since been shown to
be. This theory is now discredited and superseded by
the theory of chemical reaction between oxidizable
substances and oxidants as an explanation of combustion
[1913 Webster PJC]


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


  • Phlogiston theory - Wikipedia
    Phlogiston theory states that phlogisticated substances contain phlogiston and that they dephlogisticate when burned, releasing stored phlogiston, which is absorbed by the air
  • Phlogiston | Antoine Lavoisier, Fire | Britannica
    phlogiston, in early chemical theory, hypothetical principle of fire, of which every combustible substance was in part composed In this view, the phenomena of burning, now called oxidation, was caused by the liberation of phlogiston, with the dephlogisticated substance left as an ash or residue
  • Phlogiston Theory - Science Notes and Projects
    Phlogiston theory, once a leading theory in early chemistry, proposed that combustible materials contain a fire-like element called “phlogiston” that gets released during combustion
  • The Rise and Fall of the Phlogiston Theory of Fire
    Phlogiston was the "motive power of fire," the foundation of color, the principle of inflammability, indestructible, and an "extremely subtle matter " It could easily be used to explain observed results in experiments
  • Stahls Phlogiston Theory | Research Starters - EBSCO
    Derived from the Greek word meaning "burnt," phlogiston was believed to exist in varying amounts within all substances During combustion, phlogiston was thought to be expelled into the air, resulting in a "dephlogisticated" residue, such as wood ash
  • Phlogiston theory - Oxford Reference
    In the early 18th century Georg Stahl renamed the substance phlogiston (from the Greek for ‘burned’) and extended the theory to include the calcination (and corrosion) of metals
  • Phlogiston Theory: A Historical Perspective
    The Phlogiston Theory was a widely accepted scientific concept in the 17th and 18th centuries that attempted to explain the process of combustion and chemical reactions
  • The Discarded Phlogiston Theory in Early Chemistry - ThoughtCo
    Phlogiston theory was an early chemical theory to explain the process of oxidation, which is the reaction that occurs during combustion and rusting The word "phlogiston" is an Ancient Greek term for "burning up", which in turn derives from the Greek "phlox", which means flame
  • PHLOGISTON Definition Meaning - Merriam-Webster
    The meaning of PHLOGISTON is the hypothetical principle of fire regarded formerly as a material substance
  • Phlogiston – Science-Education-Research
    Phlogiston theory was an early chemical theory of combustion that saw the process of burning as a reaction in which a substance, phlogiston, was released from a combined state Phlogiston theory was widely used by early scientists such as Joseph Priestley and James Hutton





中文字典-英文字典  2005-2009