What do a.m. and p.m. stand for?


[sond] /sɒnd/
noun, Rocketry.
a rocket, balloon, or rockoon used as a probe for observing phenomena in the atmosphere.
Origin of sonde
1920-25; < French: plumb line; see sound3 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for sonde
  • Outside air was directed over the sonde by this ducting.
  • The sonde was deployed at the construction site on an offshore buoy.
  • The horizontal coverage of an individual sonde varies depending upon the track the sonde takes as it ascends.
  • If a sonde fails, please try to replace it immediately.
British Dictionary definitions for sonde


a rocket, balloon, or probe used for observing in the upper atmosphere
Word Origin
C20: from French: plummet, plumb line; see sound³
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for sonde

Some English speakers likely know this word

Word Value for sonde

Scrabble Words With Friends