English Reference
noun

dilution

n.
US /daɪˈɫuʃən/ UK /daɪlˈuːʃən/ di·lu·tion UK spelling dilutions

  1. 01 B2 Upper Intermediate Technical Science

    the process of adding more liquid, like water, to a mixture to make it weaker or less concentrated.

    the process of reducing the concentration of a solute in a solution, usually by adding more solvent.

    Simple

    The recipe requires a two-to-one dilution of the juice with sparkling water.

    In context

    Precise dilution is critical in laboratory settings, as even a minor calculation error can invalidate the entire chemical analysis.

  2. 02 C1 Advanced TechnicalAcademic Finance

    when a company issues new shares, making the existing shares worth a smaller percentage of the company.

    a reduction in the ownership percentage of existing shareholders caused by the issuance of new equity.

    Simple

    Investors were worried about the dilution of their stock after the new funding round.

    In context

    The board of directors must weigh the benefits of raising capital against the inevitable dilution of voting power for current stakeholders.

  3. 03 C2 Proficiency TechnicalFormal Law

    the weakening of a famous brand's reputation because other people are using similar names.

    the unauthorized use of a mark that is likely to impair the distinctiveness or harm the reputation of a famous trademark.

    Simple

    The luxury brand sued the small shop to prevent the dilution of its famous name.

    In context

    Trademark dilution laws protect famous brands even when there is no direct competition or immediate likelihood of consumer confusion.

  4. 04 C1 Advanced Academic

    the act of making something less effective or pure by adding different elements to it.

    the reduction of the strength, purity, or effectiveness of something through the introduction of outside elements.

    Simple

    Some members feared that allowing outsiders would lead to a dilution of the club's values.

    In context

    The original message of the movement suffered significant dilution as it attempted to appeal to a broader, more moderate audience.

    diminutionadulteration
This entry
Level C1 · Advanced
Frequency Occasional
Updated