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Definition of Flow cytometry
Medically reviewed by Min Clinic Staff | Updated: January 2026
Flow cytometry: Analysis of biological material via detection of the light-absorbing or fluorescing properties of cells, or of subcellular fractions such as chromosomes, as they pass in a narrow stream through a laser beam. Flow cytometry can be used with automated sorting devices to sort successive droplets of a stream into different fractions, depending on the fluorescence emitted by each droplet.