- an instrument similar to a radiosonde that is attached to a parachute and released from an aircraft.
Origin of dropsonde
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- meteorol a radiosonde dropped by parachute
C20: drop + (radio) sonde
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