Definition of optical tweezers in English:

optical tweezers

Syllabification: op·ti·cal tweez·ers

Entry from US English dictionary

noun

A device that uses light from a low-wattage laser to manipulate individual molecules within cells. Also called laser tweezers.

Definition of optical tweezers in:

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Word of the day flagitious
Pronunciation: fləˈjiSHəs
adjective
(of a person or their actions) criminal; villainous