Definition of "cytometer" []

• A graduated microscope slide or similar small vessel used for counting or measuring cells (noun)
• An automated device used for the same purpose (noun)

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• "Specifically, the flow cytometer told Gilbert that in the mice exposed to TCE, a T-cell activation molecule, CD44, was acting differently than it would have if there had been no autogen."
• "The flow cytometer uses a laser to light up cells if the cells express certain markers that should not, in normal circumstances, be present on the T cells."
• "As is standard in this sort of research, they used a machine known as a flow cytometer to examine the surface of cells from the mouse, taken from immune-system organs such as the lymph nodes and the spleen."