Find the word definition

Crossword clues for dilution

The Collaborative International Dictionary

Dilution \Di*lu"tion\, n. [Cf. F. dilution.] The act of diluting, or the state of being diluted.

Douglas Harper's Etymology Dictionary

1640s, noun of action from past participle stem of Latin diluere (see dilute).


n. 1 The action of the verb dilute. 2 The process of making something dilute. 3 A solution that has had additional solvent, such as water, added to it into order to make it less concentrated.

  1. n. a diluted solution

  2. weakening (reducing the concentration) by the addition of water or a thinner [ant: concentration]


Dilution may refer to:

  • Reducing the concentration of a chemical
  • Serial dilution, a common way of going about this reduction of concentration
  • Homeopathic dilution
  • Dilution (equation), an equation to calculate the rate a gas dilutes
  • Trademark dilution, a type of unlawful trademark use outside of the relevant market
  • Stock dilution, the result of new shares of stock being issued by a company, thereby diminishing the percent ownership represented by previously existing shares
  • Dilution gene, a gene that lightens the coat color of certain living things
  • Expectational Dilution, the second album by the metalcore band Overcast
  • Dilution ratio


Dilution (equation)

Dilution is a reduction in the pH of a chemical (gas, vapor, solution). It is the process of decreasing the concentration of a solute in solution, usually simply by mixing with more solvent. To dilute a solution means to add more solvent without the addition of more solute. The resulting solution is thoroughly mixed so as to ensure that all parts of the solution are identical.

The same direct relationship applies to gases and vapors diluted in air for example. Although, thorough mixing of gases and vapors may not be as easily accomplished.

For example, if there are 10 grams of salt (the solute) dissolved in 1 litre of water (the solvent), this solution has a certain salt concentration ( molarity). If one adds 1 litre of water to this solution the salt concentration is reduced. The diluted solution still contains 10 grams of salt (0.171 moles of NaCl).

Mathematically this relationship can be shown in the equation:

C × V = C × V


  • C = initial concentration or molarity
  • V = initial volume
  • C = final concentration or molarity
  • v = final volume

Usage examples of "dilution".

Apart from the dilution of privilege, the abolition also threatened, by example, the right of the nobles to demand comparable services from their own peasants on their estates, an effect that Turgot probably had in mind.

The darkness in Luis left no room for the weakness of curiosity, no dilution of the mind or will, no pride, and certainly no ghosts.

To elevate a nondiscriminatory theoretical dilution of a vote to a status more fundamental than the right not to be executed based on race would be to turn the Fourteenth Amendment on its head.

On the contrary, as soon as its original capacity is reduced to a minimum by dilution, further dilution gives it the power to cause actually stronger reactions, of a different and usually opposite kind.

The solution, moreover, in these experiments was diluted in the proportion of one part of the salt to 2,187,500 of water, or one grain to 5000 oz. The reader will perhaps best realise this degree of dilution by remembering that 5000 oz.

Some of you will probably be more or less troubled by the pretensions of that parody of mediaeval theology which finds its dogma of hereditary depravity in the doctrine of psora, its miracle of transubstantiation in the mystery of its triturations and dilutions, its church in the people who have mistaken their century, and its priests in those who have mistaken their calling.

The second great fact which Hahnemann professes to have established is the efficacy of medicinal substances reduced to a wonderful degree of minuteness or dilution.

A number of essential oils that are said to be useful as repellents - at a dilution of 1:50 with water - are coriander oil, oil of lemon grass, lavender oil or geranium oil.

The splash of the supercold aerosol made a drink taste of nothing but cold without the dilution of ice.

But now let us suppose we take one single drop of the Tincture of Camomile, and that the whole of this were to be carried through the common series of dilutions.

The last time I saw Buford Righter in my office it was over this very case, which was destined to create nothing but confusion in court even after I spent four hours explaining to him the dilution effect on drug levels when the body has been embalmed, that there is no satisfactory method to quantitate the rate of degradation in embalmed tissue.

Stick to the dilution offensethat the level had to have been higher before the person was embalmed, I coached him.

But for persons of very delicate nerves it is proper that the dilution should be carried to the decillionth degree.

There are those whose minds are satisfied with the decillionth dilution of a scientific proof.

When the powder is of this strength, it is ready to employ in the further solutions and dilutions to be made use of in practice.