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4 definitions found
 for ratio
From The Collaborative International Dictionary of English v.0.48 :

  Geometric \Ge`o*met"ric\, Geometrical \Ge`o*met"ric*al\, a. [L.
     geometricus; Gr. ?: cf. F. g['e]om['e]trique.]
     1. Pertaining to, or according to the rules or principles of,
        geometry; determined by geometry; as, a geometrical
        solution of a problem.
        [1913 Webster]
  
     2. (Art) characterized by simple geometric forms in design
        and decoration; as, a buffalo hide painted with red and
        black geometrical designs.
  
     Syn: geometric.
          [WordNet 1.5]
  
     Note: Geometric is often used, as opposed to algebraic, to
           include processes or solutions in which the
           propositions or principles of geometry are made use of
           rather than those of algebra.
           [1913 Webster]
  
     Note: Geometrical is often used in a limited or strictly
           technical sense, as opposed to mechanical; thus, a
           construction or solution is geometrical which can be
           made by ruler and compasses, i. e., by means of right
           lines and circles. Every construction or solution which
           requires any other curve, or such motion of a line or
           circle as would generate any other curve, is not
           geometrical, but mechanical. By another distinction, a
           geometrical solution is one obtained by the rules of
           geometry, or processes of analysis, and hence is exact;
           while a mechanical solution is one obtained by trial,
           by actual measurements, with instruments, etc., and is
           only approximate and empirical.
           [1913 Webster]
  
     Geometrical curve. Same as Algebraic curve; -- so called
        because their different points may be constructed by the
        operations of elementary geometry.
  
     Geometric lathe, an instrument for engraving bank notes,
        etc., with complicated patterns of interlacing lines; --
        called also cycloidal engine.
  
     Geometrical pace, a measure of five feet.
  
     Geometric pen, an instrument for drawing geometric curves,
        in which the movements of a pen or pencil attached to a
        revolving arm of adjustable length may be indefinitely
        varied by changing the toothed wheels which give motion to
        the arm.
  
     Geometrical plane (Persp.), the same as Ground plane .
  
     Geometrical progression, proportion, ratio. See under
        Progression, Proportion and Ratio.
  
     Geometrical radius, in gearing, the radius of the pitch
        circle of a cogwheel. --Knight.
  
     Geometric spider (Zool.), one of many species of spiders,
        which spin a geometrical web. They mostly belong to
        Epeira and allied genera, as the garden spider. See
        Garden spider.
  
     Geometric square, a portable instrument in the form of a
        square frame for ascertaining distances and heights by
        measuring angles.
  
     Geometrical staircase, one in which the stairs are
        supported by the wall at one end only.
  
     Geometrical tracery, in architecture and decoration,
        tracery arranged in geometrical figures.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Ratio \Ra"ti*o\ (r[=a]"sh[i^]*[-o] or r[=a]"sh[-o]), n. [L., fr.
     reri, ratus, to reckon, believe, think, judge. See Reason.]
     1. (Math.) The relation which one quantity or magnitude has
        to another of the same kind. It is expressed by the
        quotient of the division of the first by the second; thus,
        the ratio of 3 to 6 is expressed by 3/6 or 1/2; of a to b
        by a/b; or (less commonly) the second term is made the
        dividend; as, a:b = b/a.
        [1913 Webster]
  
     Note: Some writers consider ratio as the quotient itself,
           making ratio equivalent to a number.
           [1913 Webster] The term ratio is also sometimes applied
           to the difference of two quantities as well as to their
           quotient, in which case the former is called
           arithmetical ratio, the latter, geometrical ratio. The
           name ratio is sometimes given to the rule of three in
           arithmetic. See under Rule.
           [1913 Webster]
  
     2. Hence, fixed relation of number, quantity, or degree;
        rate; proportion; as, the ratio of representation in
        Congress.
        [1913 Webster]
  
     Compound ratio, Duplicate ratio, Inverse ratio, etc.
        See under Compound, Duplicate, etc.
  
     Ratio of a geometrical progression, the constant quantity
        by which each term is multiplied to produce the succeeding
        one.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  ratio
      n 1: the relative magnitudes of two quantities (usually
           expressed as a quotient)
      2: the relation between things (or parts of things) with respect
         to their comparative quantity, magnitude, or degree; "an
         inordinate proportion of the book is given over to
         quotations"; "a dry martini has a large proportion of gin"
         [syn: proportion, ratio]

From Moby Thesaurus II by Grady Ward, 1.0 :

  89 Moby Thesaurus words for "ratio":
     Vernunft, amount, analogousness, arithmetical proportion, balance,
     brain, brains, caliber, commensurability, comparability,
     comparableness, comparativeness, compass, conception,
     continued fraction, correlation, correspondence, cut, degree,
     discourse of reason, discursive reason, equivalence, esprit,
     extent, fraction, geometric ratio, grade, gray matter,
     harmonic proportion, head, headpiece, height, improper fraction,
     intellect, intellection, intellectual faculty, intelligence,
     interval, leap, level, mark, measure, mens, mental capacity,
     mentality, mind, notch, nous, nuance, pas, peg, percent,
     percentage, period, pitch, plane, plateau, point, power of reason,
     proportion, proportionability, psyche, quota, quotum, range, rate,
     rationality, reach, reason, reasoning, reasoning faculty,
     relationship, remove, round, rule of three, rung, scale, scope,
     shade, shadow, similarity, smarts, space, stair, standard, step,
     stint, tread, understanding
  
  

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