Definition of probes:
(v) :
(ambitransitive) To explore, investigate, question, test, or prove.
(n) :
(figuratively) An investigation or inquiry.
(n) :
(figuratively) Something which penetrates something else, as though to explore; something which obtains information.
(n) :
(surgery) Any of various medical instruments used to explore wounds, organs, etc.
(n) :
(sciences) A small device, especially an electrode, used to explore, investigate or measure something by penetrating or being placed in it.
(n) :
(astronautics) A small, usually uncrewed, spacecraft used to acquire information or measurements about its surroundings.