from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A method or process of dealing with a problem.
  • noun The answer to a problem or the explanation for something.
  • noun A homogeneous mixture of two or more substances, which may be solids, liquids, gases, or a combination of these.
  • noun The process of forming such a mixture.
  • noun The state of being dissolved.
  • noun Archaic The act of separating or breaking up; dissolution.

from The Century Dictionary.

  • noun The act of separating the parts of any body; disruption; rupture; fracture; breach: as, a solution of continuity (see below).
  • noun The transformation of matter from a solid or gaseous state to the liquid state by means of a liquid called the solvent or menstruum; the state of being dissolved.
  • noun The liquid produced as a result of the process or action above described; the preparation made by dissolving a solid in a liquid: as, a solution salt, soda, or alum; solution of iron, etc.
  • noun A liquid or dissolved state or condition; unsettled state; suspense.
  • noun The act of solving, working out, explaining, clearing up, or settling, or the state of being solved, explained, cleared up, or settled; resolution; explanation: as, the solution of a difficult problem or of a doubt in casuistry.
  • noun A method of solving or finally clearing up or settling something. Specifically
  • noun The answer to a problem or puzzle of any kind, together with the proof that that answer is correct.
  • noun Dissolution; a dissolving.
  • noun Release; deliverance; discharge.
  • noun In medicine, the termination of a disease, especially when accompanied by critical symptoms; the crisis of a disease.
  • noun In civil law, payment; satisfaction of a creditor.
  • noun A solution of the general quartic, due to Professor Cayley. Let U = 0 be the quartic, H its Hessian, S its quadrinvariant, T its cubinvariant or catalecticant, and c 1, c2, c 3 the roots of the cubic c——S c—T = 0, then the solution follows from The square roots can always be extracted.
  • noun Normal solutions are of great value in volumetric chemical analysis. When solutions of less strength than the normal are desired, they are diluted one half, one fifth, one tenth, and one one-hundredth, giving seminormal, quintinormal, decinormal, and centinormal solutions. These are usually abbreviated as and .

from the GNU version of the Collaborative International Dictionary of English.

  • noun The act of separating the parts of any body, or the condition of undergoing a separation of parts; disruption; breach.
  • noun The act of solving, or the state of being solved; the disentanglement of any intricate problem or difficult question; explanation; clearing up; -- used especially in mathematics, either of the process of solving an equation or problem, or the result of the process.
  • noun The state of being dissolved or disintegrated; resolution; disintegration.
  • noun (Chem.Phys.) The act or process by which a body (whether solid, liquid, or gaseous) is absorbed into a liquid, and, remaining or becoming fluid, is diffused throughout the solvent; also, the product resulting from such absorption.
  • noun obsolete Release; deliverance; discharge.
  • noun The termination of a disease; resolution.
  • noun A crisis.
  • noun A liquid medicine or preparation (usually aqueous) in which the solid ingredients are wholly soluble.
  • noun (Chem.) a standardized solution of cupric hydrate in sodium potassium tartrate, used as a means of determining the reducing power of certain sugars and sirups by the amount of red cuprous oxide thrown down.
  • noun (Min.) a liquid of high density, as a solution of mercuric iodide in potassium iodide (called the Sonstadt solution or Thoulet solution) having a maximum specific gravity of 3.2, or of borotungstate of cadium (Klein solution, specific gravity 3.6), and the like. Such solutions are much used in determining the specific gravities of minerals, and in separating them when mechanically mixed as in a pulverized rock.
  • noun See Nesslerize.
  • noun the separation of connection, or of connected substances or parts; -- applied, in surgery, to a fracture, laceration, or the like.
  • noun (Chem.) a solution which is used as a reagent, and is of a known and standard strength; specifically, a normal solution, containing in each cubic centimeter as many milligrams of the element in question as the number representing its atomic weight; thus, a normal solution of silver nitrate would contain 107.7 mgr. of silver in each cubic centimeter.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A homogeneous mixture, which may be liquid, gas or solid, formed by dissolving one or more substances.
  • noun An act, plan or other means, used or proposed, to solve a problem.
  • noun mathematics The answer to a problem.
  • noun A product, service or suite thereof.
  • noun law Satisfaction of a claim or debt.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a method for solving a problem
  • noun the successful action of solving a problem
  • noun the set of values that give a true statement when substituted into an equation
  • noun a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution
  • noun a statement that solves a problem or explains how to solve the problem


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English, from Old French, from Latin solūtiō, solūtiōn-, from solūtus, past participle of solvere, to loosen; see solute.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Old French solucion (French: solution).



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