catflap.org Online Dictionary Query

  Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
     [L., dim. of forma form, model. See{Form, n.]
     1. A prescribed or set form; an established rule; a fixed or
        conventional method in which anything is to be done,
        arranged, or said.
        [1913 Webster]
  
     2. (Eccl.) A written confession of faith; a formal statement
        of foctrines.
        [1913 Webster]
  
     3. (Math.) A rule or principle expressed in algebraic
        language; as, the binominal formula.
        [1913 Webster]
  
     4. (Med.) A prescription or recipe for the preparation of a
        medicinal compound.
        [1913 Webster]
  
     5. (Chem.) A symbolic expression (by means of letters,
        figures, etc.) of the constituents or constitution of a
        compound.
        [1913 Webster]
  
     Note: Chemical formul[ae] consist of the abbreviations of the
           names of the elements, with a small figure at the lower
           right hand, to denote the number of atoms of each
           element contained.
           [1913 Webster]
  
     Empirical formula (Chem.), an expression which gives the
        simple proportion of the constituents; as, the empirical
        formula of acetic acid is C2H4O2.
  
     Graphic formula, Rational formula (Chem.), an expression
        of the constitution, and in a limited sense of the
        structure, of a compound, by the grouping of its atoms or
        radicals; as, a rational formula of acetic acid is
        CH3.(C:O).OH; -- called also structural formula,
        constitutional formula, etc. See also the formula of
        Benzene nucleus, under Benzene.
  
     Molecular formula (Chem.), a formula indicating the
        supposed molecular constitution of a compound.
        [1913 Webster]

  Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
     [L., dim. of forma form, model. See{Form, n.]
     1. A prescribed or set form; an established rule; a fixed or
        conventional method in which anything is to be done,
        arranged, or said.
  
     2. (Eccl.) A written confession of faith; a formal statement
        of foctrines.
  
     3. (Math.) A rule or principle expressed in algebraic
        language; as, the binominal formula.
  
     4. (Med.) A prescription or recipe for the preparation of a
        medicinal compound.
  
     5. (Chem.) A symbolic expression (by means of letters,
        figures, etc.) of the constituents or constitution of a
        compound.
  
     Note: Chemical formul[ae] consist of the abbreviations of the
           names of the elements, with a small figure at the lower
           right hand, to denote the number of atoms of each
           element contained.
  
     Empirical formula (Chem.), an expression which gives the
        simple proportion of the constituents; as, the empirical
        formula of acetic acid is C2H4O2.
  
     Graphic formula, Rational formula (Chem.), an expression
        of the constitution, and in a limited sense of the
        structure, of a compound, by the grouping of its atoms or
        radicals; as, a rational formula of acetic acid is
        CH3.(C:O).OH; -- called also structural formula,
        constitutional formula, etc. See also the formula of
        Benzene nucleus, under Benzene.
  
     Molecular formula (Chem.), a formula indicating the
        supposed molecular constitution of a compound.

  constitutional formula /kˌɒnstɪtjˈuːʃənəl fˈɔːmjʊlə/
  szerkezeti képlet