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optical tweezers

noun, (used with a singular or plural verb)
a laser device used to study, manipulate, or trap a microscopic object, as a microorganism or cell, with nanometer precision.
Also called laser tweezers. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for laser tweezers
  • laser tweezers, meanwhile, trap molecules and particles in a tightly focused beam of light.

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