sondage

Borrowed from French sondage (“survey, sounding”).

• (UK) IPA^(key): /ˈsɒn.dɑːʒ/

sondage (plural sondages)

1. (archaeology) A small test excavation or test pit to examine the stratigraphy of a site; a deeper investigation of a small part of a larger trench.

• endogas

From sonder +‎ -age.

• IPA^(key): /sɔ̃.daʒ/

• Audio (Paris):

  (file)

sondage m (plural sondages)

1. poll, survey
2. (medicine) probing, probe, catheterization
3. (technology) boring, drilling
4. (nautical, meteorology) sounding

• “sondage”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.