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2 definitions found
 for Pure chemistry
From The Collaborative International Dictionary of English v.0.48 :

  Pure \Pure\, a. [Compar. Purer; superl. Purest.] [OE. pur,
     F. pur, fr. L. purus; akin to putus pure, clear, putare to
     clean, trim, prune, set in order, settle, reckon, consider,
     think, Skr. p? to clean, and perh. E. fire. Cf. Putative.]
     1. Separate from all heterogeneous or extraneous matter; free
        from mixture or combination; clean; mere; simple; unmixed;
        as, pure water; pure clay; pure air; pure compassion.
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              The pure fetters on his shins great.  --Chaucer.
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              A guinea is pure gold if it has in it no alloy. --I.
                                                    Watts.
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     2. Free from moral defilement or quilt; hence, innocent;
        guileless; chaste; -- applied to persons. "Keep thyself
        pure." --1 Tim. v. 22.
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              Now the end of the commandment is charity out of a
              pure heart, and of a good conscience. --1 Tim. i. 5.
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     3. Free from that which harms, vitiates, weakens, or
        pollutes; genuine; real; perfect; -- applied to things and
        actions. "Pure religion and impartial laws." --Tickell.
        "The pure, fine talk of Rome." --Ascham.
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              Such was the origin of a friendship as warm and pure
              as any that ancient or modern history records.
                                                    --Macaulay.
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     4. (Script.) Ritually clean; fitted for holy services.
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              Thou shalt set them in two rows, six on a row, upon
              the pure table before the Lord.       --Lev. xxiv.
                                                    6.
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     5. (Phonetics) Of a single, simple sound or tone; -- said of
        some vowels and the unaspirated consonants.
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     Pure-impure, completely or totally impure. "The inhabitants
        were pure-impure pagans." --Fuller.
  
     Pure blue. (Chem.) See Methylene blue, under Methylene.
        
  
     Pure chemistry. See under Chemistry.
  
     Pure mathematics, that portion of mathematics which treats
        of the principles of the science, or contradistinction to
        applied mathematics, which treats of the application of
        the principles to the investigation of other branches of
        knowledge, or to the practical wants of life. See
        Mathematics. --Davies & Peck (Math. Dict. )
  
     Pure villenage (Feudal Law), a tenure of lands by uncertain
        services at the will of the lord. --Blackstone.
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     Syn: Unmixed; clear; simple; real; true; genuine;
          unadulterated; uncorrupted; unsullied; untarnished;
          unstained; stainless; clean; fair; unspotted; spotless;
          incorrupt; chaste; unpolluted; undefiled; immaculate;
          innocent; guiltless; guileless; holy.
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From The Collaborative International Dictionary of English v.0.48 :

  Chemistry \Chem"is*try\ (k[e^]m"[i^]s*tr[y^]; 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.
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     Note: Historically, chemistry is an outgrowth of alchemy (or
           alchemistry), with which it was anciently identified.
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     2. An application of chemical theory and method to the
        consideration of some particular subject; as, the
        chemistry of iron; the chemistry of indigo.
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     3. A treatise on chemistry.
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     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.
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     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.
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