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polydisperse
This term is primarily used in chemistry, physics, and materials science to describe a system where the components are not uniform in size. It is the direct antonym of monodisperse. When a sample is described as polydisperse, it implies a statistical distribution of properties, such as molecular weight or particle diameter, rather than a single, precise value.
In a laboratory or industrial context, the degree of polydispersity is often quantified by a polydispersity index (PDI). A high PDI indicates a broad range of sizes, whereas a PDI close to 1.0 indicates a highly uniform, monodisperse population.
Meanings
Examples
We need to determine if the colloid is monodisperse or polydisperse.
The sample appears to be polydisperse based on the light scattering data.
Why is this batch so polydisperse compared to the last one?
A polydisperse distribution of particle sizes can affect the viscosity of the fluid.
I wonder if the catalyst caused the product to become too polydisperse.
The aerosol consists of a polydisperse mixture of droplets.
The resulting resin is naturally polydisperse due to the polymerization process.