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3 definitions found
 for Methyl alcohol
From The Collaborative International Dictionary of English v.0.48 :

  Methyl \Meth"yl\, n. [See Methylene.] (Chem.)
     A univalent hydrocarbon radical, CH3-, not existing alone
     but regarded as an essential residue of methane, and
     appearing as a component part of many derivatives; as, methyl
     alcohol, methyl ether, methyl amine, etc. [Formerly written
     also methule, methyle, etc.]
     [1913 Webster]
  
     Methyl alcohol (Chem.), a light, volatile, inflammable
        liquid, CH3.OH, obtained by the distillation of wood,
        and hence called wood alcohol or wood spirit;
        tecnically referred to as methanol; -- called also
        methol, carbinol, etc.
  
     Methyl amine (Chem.), a colorless, inflammable, alkaline
        gas, CH3.NH2, having an ammoniacal, fishy odor. It is
        produced artificially, and also occurs naturally in
        herring brine and other fishy products. It is regarded as
        ammonia in which a third of its hydrogen is replaced by
        methyl, and is a type of the class of substituted
        ammonias.
  
     Methyl ether (Chem.), a light, volatile ether CH3.O.CH3,
        obtained by the etherification of methyl alcohol; --
        called also methyl oxide or dimethyl ether.
  
     Methyl green. (Chem.) See under Green, n.
  
     Methyl orange. (Chem.) See Helianthin.
  
     Methyl violet (Chem.), an artificial dye, consisting of
        certain methyl halogen derivatives of rosaniline.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Alcohol \Al"co*hol\ ([a^]l"k[-o]*h[o^]l), n. [Cf. F. alcool,
     formerly written alcohol, Sp. alcohol alcohol, antimony,
     galena, OSp. alcofol; all fr. Ar. al-kohl a powder of
     antimony or galena, to paint the eyebrows with. The name was
     afterwards applied, on account of the fineness of this
     powder, to highly rectified spirits, a signification unknown
     in Arabia. The Sp. word has both meanings. Cf. Alquifou.]
     1. An impalpable powder. [Obs.]
        [1913 Webster]
  
     2. The fluid essence or pure spirit obtained by distillation.
        [Obs.] --Boyle.
        [1913 Webster]
  
     3. Pure spirit of wine; pure or highly rectified spirit
        (called also ethyl alcohol or ethanol, CH3.CH2.OH);
        the spirituous or intoxicating element of fermented or
        distilled liquors, or more loosely a liquid containing it
        in considerable quantity. It is extracted by simple
        distillation from various vegetable juices and infusions
        of a saccharine nature, which have undergone vinous
        fermentation.
  
     Note: [The ferementation is usually carried out by addition
           of brewer's yeast, Saccharomyces cerevisiae to an
           aqueous solution containing carbohydrates.]
           [1913 Webster +PJC]
  
     Note: As used in the U. S. "Pharmacop[oe]ia," alcohol
           contains 91 per cent by weight of ethyl alcohol and 9
           per cent of water; and diluted alcohol (proof spirit)
           contains 45.5 per cent by weight of ethyl alcohol and
           54.5 per cent of water.
           [1913 Webster]
  
     4. (Organic Chem.) A class of compounds analogous to vinic
        alcohol in constitution. Chemically speaking, they are
        hydroxides of certain organic radicals; as, the radical
        ethyl+alcohol+({C2H5.OH">ethyl forms common or ethyl alcohol ({C2H5.OH); methyl
        methyl+alcohol+({CH3.OH">forms methyl alcohol ({CH3.OH) or wood alcohol; amyl
        amyl+alcohol+({C5H11.OH">forms amyl alcohol ({C5H11.OH) or fusel oil, etc.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  methyl alcohol
      n 1: a light volatile flammable poisonous liquid alcohol; used
           as an antifreeze and solvent and fuel and as a denaturant
           for ethyl alcohol [syn: methanol, methyl alcohol, wood
           alcohol, wood spirit]

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