noun. Any device used in counting cells: employed frequently in the special sense of hemacytometer.

noun. A graduated microscope slide or similar small vessel used for counting or measuring cells

noun. An automated device used for the same purpose

"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."

cytometry  

Lackawanna  ablation  backscatter  calorimeter  calorimetry