Definition of milliprobe in English:

milliprobe

Pronunciation /ˈmɪlɪprəʊb/

noun

  • An instrument for analysing small amounts of material; specifically a form of spectrometer, used especially to study delicate or valuable objects, in which a narrow beam of protons or other subatomic particles is directed at a specimen and the spectrum of the resulting fluorescence is analysed.

Origin

1960s. From milli- + probe.