
1) Atmospheric balloon probe 2) Atmospheric probe 3) Balloon probe 4) Balloon-carried probe 5) French word used in English 6) High-altitude probe 7) High-altitude weather probe 8) Meteorological device 9) Meteorological probe 10) Meteorological testing device 11) Observation balloon 12) Research balloon
Found on
https://www.crosswordclues.com/clue/sonde
[electronics] A Sonde (Sonde is French for probe) is a water quality monitoring instrument, that may be stationary or may move up and down a water column, measuring, but not limited to, the following water attributes; temperature, conductivity, salinity, dissolved oxygen, pH, turbidity, and depth. ...
Found on
http://en.wikipedia.org/wiki/Sonde_(electronics)

• (v. t.) That which is sent; a message or messenger; hence, also, a visitation of providence; an affliction or trial.
Found on
http://thinkexist.com/dictionary/meaning/sonde/
No exact match found.