Diluida

Diluida is the feminine form of the past participle of the verb diluir in Spanish and Portuguese, used as an adjective to describe a liquid or solution whose concentration has been reduced by the addition of a solvent. The masculine form is diluido (singular) or diluídos (plural), and the feminine plural is diluidas. In everyday and scientific language, it is common to find phrases such as “solución diluida” in Spanish or “solução diluída” in Portuguese to indicate a liquid that has been thinned out or weakened.

In science and industry, dilution describes reducing the amount of solute per unit of solvent. The concept is central to chemistry, biology, medicine, and environmental science, among other fields. A dilution factor expresses how much the original solution has been watered down, and dilutions are often prepared by mixing a measured volume of a stock solution with a calculable amount of solvent. The widely used relation C1V1 = C2V2 (concentration and volume after and before dilution) provides a practical method to plan dilutions. For example, to prepare 1 liter of a 1 mM solution from a 10 mM stock, one would mix 100 mL of the stock with 900 mL of solvent, yielding a final diluted solution.

Usage scope includes laboratory preparations, pharmacology, food and beverage processing, and quality control, where precise dilution is required to obtain specific concentrations. The term also appears in general language to describe any diluted or spread-out state of a substance. See also dilution, dilution factor, and concentration.