microprobe
mi cro probe |ˈmīkrəˌprōb ˈmaɪkrəproʊb | ▶noun Chemistry an instrument in which a beam of electrons or other radiation is focused onto a minute area of a sample and the resulting secondary radiation (usually X-ray fluorescence ) is analyzed to yield chemical information.
micro |probe |ˈmʌɪkrə (ʊ )prəʊb | ▶noun another term for microanalyser.
The Wordsmith Dictionary
The Wordsmith Dictionary