microprobe

[ mahy-kruh-prohb ]
/ ˈmaɪ krəˌproʊb /

noun

Chemistry, Spectroscopy. a device used to excite radiation by a material in order to determine chemical or elemental composition from the emission spectrum produced.
Surgery. a miniature probe for use in microsurgery.

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Origin of microprobe

First recorded in 1955–60; micro- + probe
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020