sonde

/sɔ̃d/
1.
nounfeminine

probe (instrument for measuring or collecting data)

medical tube/catheter (e.g., nasogastric tube)

space probe / spacecraft sent to explore celestial bodies

La sonde a transmis des données détaillées depuis l'atmosphère martienne.

The probe transmitted detailed data from Mars' atmosphere.

2.
verbInd1stPresSing1, 3

to probe; to explore or examine

to poll or survey (public opinion)

L'institut sonde l'opinion publique avant les élections.

The institute is polling public opinion before the elections.