(medicine) probe; sound

inflection of sonder:
/ inflection of sonder:

weather balloon, sounding balloon

urinary catheter

second-person singular present indicative/subjunctive of sonder

(transitive) to probe (test with a probe) / (transitive) to probe (test the depth of something) / (transitive) to probe (test the depth of something); to sound (use sound waves to establish the depth) / (transitive) to probe (look carefully around) / (transitive) to probe (ask someone many questions, in order to find something out) / (meteorology) to survey and take measurements using a weather balloon

plural of sonde urinaire

plural of ballon-sonde