Notation and Reduction

noun

• A technical system of symbols used to represent special things.
  • synonyms: notational system
• A comment or instruction (usually added. )
  • usage: "his notes were appended at the end of the article"; "he added a short notation to the address on the envelope"
  • synonyms: note, annotation
• The activity of representing something by a special system of marks or characters. .

• (n.) Literal or etymological signification.
• (n.) Any particular system of characters, symbols or abbreviated expressions used in art or science, to express briefly technical facts, quantities, etc. especially, the system of figures, letters, and signs used in arithmetic and algebra to express number, quantity or operations.
• (n.) The act or practice of recording anything by marks, figures or characters.
• (n.) The act or practice of recording anything by marks, figures or characters.
• (n.) Any particular system of characters, symbols or abbreviated expressions used in art or science, to express briefly technical facts, quantities, etc. especially, the system of figures, letters, and signs used in arithmetic and algebra to express number, quantity or operations.
• (n.) Literal or etymological signification.

noun

• The act of decreasing or reducing something.
  • synonyms: decrease, diminution, step-down
• Any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent.
  • synonyms: reducing
• The act of reducing complexity.
  • synonyms: simplification

• (v.t.) The correction of observations for known errors of instruments, etc.
• (v.t.) The bringing of a syllogism in one of the so-called imperfect modes into a mode in the first figure.
• (v.t.) The operation of restoring a dislocated or fractured part to its former place.
• (n.) The act or process of reducing. See Reduce, v. t., 6. and To reduce an equation, To reduce an expression, under Reduce, v. t.
• (v.t.) The process of making a copy of something, as a figure, design or draught, on a smaller scale, preserving the proper proportions.
• (v.t.) The act, process or result of reducing; as, the reduction of iron from its ores; the reduction of aldehyde from alcohol.
• (v.t.) The preparation of the facts and measurements of observations in order to deduce a general result.
• (n.) The act of reducing or state of being reduced; conversion to a given state or condition; diminution; conquest; as, the reduction of a body to powder; the reduction of things to order; the reduction of the expenses of government; the reduction of a rebellious province.

(DoD) The creation of lanes through a minefield or obstacle to allow passage of the attacking ground force.