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optical glass
optical illusion
optical isomerism
optical mouse
optical rotation
optical scanner
optical semiconductor
optical sound
optical tweezers
optician
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optical tweezers

op·ti·cal tweez·ers


plural noun 
Definition:
 
laser beam manipulating microscopic object: a laser beam focused on a biological object of microscopic size that is used to trap it for study and manipulation. Optical tweezers are used to study molecules and by surgeons to work on a single cell.

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