A flat plate with multiple "wells" used as small test tubes.(noun)
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Use "microplate" in a sentence
"Absorbance at 510 nm wavelength was measured on a Perkin Elmer Victor III multilabel microplate reader."
"Putman diluted the samples and separated them into smaller units for examination with a device called a microplate reader."
"To the east is the big mischief-maker, the Adria microplate, which is tugging to the northeast and is a potent trigger for quakes in both the Apennines and in the Balkans, on the other side of the Adriatic."