mixture

noun

• a substance made by mixing other substances together:form the mixture into a manageable dough shandy is a mixture of beer and lemonade
• [mass noun] the process of mixing or being mixed.
• a combination of different things in which the component elements are individually distinct:the old town is a mixture of narrow medieval streets and 18th-century architecture
• Chemistry the product of the random distribution of one substance through another without any chemical reaction, as distinct from a compound.
• the charge of gas or vapour mixed with air which is admitted to the cylinder of an internal-combustion engine, especially as regards the ratio of fuel to air:newer pilots often leave their mixture rich during an entire flight
• (also mixture stop) an organ stop in which each key sounds a group of small pipes of different pitches, giving a very bright tone.