[1] : The Collaborative International Dictionary of English v.0.48

chemistry \chem"istry\ ke^m"i^stry^; 277, n. from
   chemist. see alchemy.
   1. that branch of science which treats of the composition of
      substances, and of the changes which they undergo in
      consequence of alterations in the constitution of the
      molecules, which depend upon variations of the number,
      kind, or mode of arrangement, of the constituent atoms.
      these atoms are not assumed to be indivisible, but merely
      the finest grade of subdivision hitherto attained.
      chemistry deals with the changes in the composition and
      constitution of molecules. see atom, molecule.
      1913 webster

   note: historically, chemistry is an outgrowth of alchemy or
         alchemistry, with which it was anciently identified.
         1913 webster

   2. an application of chemical theory and method to the
      consideration of some particular subject; as, the
      chemistry of iron; the chemistry of indigo.
      1913 webster

   3. a treatise on chemistry.
      1913 webster

   note: this word and its derivatives were formerly written
         with y, and sometimes with i, instead of e, in the
         first syllable, chymistry, chymist, chymical, etc., or
         chimistry, chimist, chimical, etc.; and the
         pronunciation was conformed to the orthography.
         1913 webster

   inorganic chemistry, that which treats of inorganic or
      mineral substances.

   organic chemistry, that which treats of the substances
      which form the structure of organized beings and their
      products, whether animal or vegetable; -- called also
      chemistry of the carbon compounds. there is no
      fundamental difference between organic and inorganic
      chemistry.

   physiological chemistry, the chemistry of the organs and
      tissues of the body, and of the various physiological
      processes incident to life.

   practical chemistry, or applied chemistry, that which
      treats of the modes of manufacturing the products of
      chemistry that are useful in the arts, of their
      applications to economical purposes, and of the conditions
      essential to their best use.

   pure chemistry, the consideration of the facts and theories
      of chemistry in their purely scientific relations, without
      necessary reference to their practical applications or
      mere utility.
      1913 webster
see also:
chemist alchemy atom molecule inorganic chemistry organic chemistry 
chemistry of the carbon compounds physiological chemistry practical chemistry applied chemistry pure chemistry 

Carbon >> C Words
Carbon, definition of term: Carbon
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Carbon Monoxide, definition of term: Carbon Monoxide
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Carbon Dioxide, definition of term: Carbon Dioxide
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Carbon Paper >> C Words
Carbon Paper, definition of term: Carbon Paper
carbon+paper_pag1.html

Carbon Tet >> C Words
Carbon Tet, definition of term: Carbon Tet
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Carbon Tetrachl >> C Words
Carbon Tetrachl, definition of term: Carbon Tetrachl
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Carbon Cycle >> C Words
Carbon Cycle, definition of term: Carbon Cycle
carbon+cycle_pag1.html

Carbon Copy >> C Words
Carbon Copy, definition of term: Carbon Copy
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Carbon 14 >> C Words
Carbon 14, definition of term: Carbon 14
carbon+14_pag1.html

Carbon Black >> C Words
Carbon Black, definition of term: Carbon Black
carbon+black_pag1.html

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