micromanipulation
/ˌmʌɪkrə(ʊ)məˌnɪpjʊˈleɪʃn/Chiefly Biology
noun
The performance of extremely delicate procedures, such as the isolation or injection of single cells, under a microscope, especially using a micromanipulator; a procedure performed in this way.
Origin
1920s; earliest use found in Science. From micro- + manipulation.