Reduce /(rē̇*dūs")/

Re·duce

Reduce

v. t.

imp. & p. p. Reduced; p. pr. & vb. n. Reducing

  1. To bring or lead back to any former place or condition. [Obs.]
    And to his brother's house reduced his wife.
    The sheep must of necessity be scattered, unless the great Shephered of souls oppose, or some of his delegates reduce and direct us.
  2. To bring to any inferior state, with respect to rank, size, quantity, quality, value, etc.; to diminish; to lower; to degrade; to impair; as, to reduce a sergeant to the ranks; to reduce a drawing; to reduce expenses; to reduce the intensity of heat.
    Nothing so excellent but a man may fasten upon something belonging to it, to reduce it.
    Having reduced Their foe to misery beneath their fears.
    Hester Prynne was shocked at the condition to which she found the clergyman reduced.
  3. To bring to terms; to humble; to conquer; to subdue; to capture; as, to reduce a province or a fort.
  4. To bring to a certain state or condition by grinding, pounding, kneading, rubbing, etc.; as, to reduce a substance to powder, or to a pasty mass; to reduce fruit, wood, or paper rags, to pulp.
    It were but right And equal to reduce me to my dust.
  5. To bring into a certain order, arrangement, classification, etc.; to bring under rules or within certain limits of descriptions and terms adapted to use in computation; as, to reduce animals or vegetables to a class or classes; to reduce a series of observations in astronomy; to reduce language to rules.
  6. To change, as numbers, from one denomination into another without altering their value, or from one denomination into others of the same value; as, to reduce pounds, shillings, and pence to pence, or to reduce pence to pounds; to reduce days and hours to minutes, or minutes to days and hours. (Arith.)
  7. To add an electron to an atom or ion. (Chem.)
  8. To restore to its proper place or condition, as a displaced organ or part; as, to reduce a dislocation, a fracture, or a hernia. (Med.)

Phrases & Compounds

Reduced iron
metallic iron obtained through deoxidation of an oxide of iron by exposure to a current of hydrogen or other reducing agent. When hydrogen is used the product is called also iron by hydrogen.
To reduce an equation
to bring the unknown quantity by itself on one side, and all the known quantities on the other side, without destroying the equation.
To reduce an expression
to obtain an equivalent expression of simpler form.
To reduce a square
to reform the line or column from the square.