micromanipulator
/ˌmʌɪkrə(ʊ)məˈnɪpjʊleɪtə/Chiefly Biology
noun
Any of various mechanical devices used to hold and control the movement of very small instruments (e.g. micropipettes) under a microscope.
Origin
1920s; earliest use found in Science. From micro- + manipulator, after micromanipulation.