The Collaborative International Dictionary of English v.0.48:

Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
   [L., dim. of forma form, model. SeeForm, 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.
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   2. (Eccl.) A written confession of faith; a formal statement
      of foctrines.
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   3. (Math.) A rule or principle expressed in algebraic
      language; as, the binominal formula.
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   4. (Med.) A prescription or recipe for the preparation of a
      medicinal compound.
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   5. (Chem.) A symbolic expression (by means of letters,
      figures, etc.) of the constituents or constitution of a
      compound.
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   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.
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   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.
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The Collaborative International Dictionary of English v.0.48:

Graphic \Graph"ic\ (gr[a^]f"[i^]k), Graphical \Graph"ic*al\
   (gr[a^]f"[i^]*kal), a. [L. graphicus, Gr. grafiko`s, fr.
   gra`fein to write; cf. F. graphique. See Graft.]
   1. Of or pertaining to the arts of painting and drawing; of
      or pertaining to graphics; as, graphic art work. [WordNet
      sense 2]
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   2. Of or pertaining to the art of writing.
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   3. Written or engraved; formed of letters or lines.
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            The finger of God hath left an inscription upon all
            his works, not graphical, or composed of letters.
                                                  --Sir T.
                                                  Browne.
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   4. Having the faculty of clear, detailed, and impressive
      description; as, a graphic writer.
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   5. Well delineated; clearly and vividly described;
      characterized by, clear, detailed, and impressive
      description; vivid; evoking lifelike images within the
      mind; as graphic details of the President's sexual
      misbehavior; a graphic description of the accident;
      graphic images of violence. [WordNet sense 5]

   Syn: lifelike, pictorial, vivid.
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   6. Hence: describing nudity or sexual activity in explicit
      detail; as, a novel with graphic sex scenes.
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   7. relating to or presented by a graph[2]; as, a graphic
      presentation of the data. [WordNet sense 3]

   Syn: graphical.
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   Graphic algebra, a branch of algebra in which, the
      properties of equations are treated by the use of curves
      and straight lines.

   Graphic arts, a name given to those fine arts which pertain
      to the representation on a fiat surface of natural
      objects; as distinguished from music, etc., and also from
      sculpture.

   Graphic formula. (Chem.) See under Formula.

   Graphic granite. See under Granite.

   Graphic method, the method of scientific analysis or
      investigation, in which the relations or laws involved in
      tabular numbers are represented to the eye by means of
      curves or other figures; as the daily changes of weather
      by means of curves, the abscissas of which represent the
      hours of the day, and the ordinates the corresponding
      degrees of temperature.

   Graphical statics (Math.), a branch of statics, in which
      the magnitude, direction, and position of forces are
      represented by straight lines

   Graphic tellurium. See Sylvanite.
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