dropsonde

[ drop-sond ]
/ ˈdrɒpˌsɒnd /

noun Meteorology.

an instrument similar to a radiosonde that is attached to a parachute and released from an aircraft.

Origin of dropsonde

First recorded in 1945–50; drop + (radio)sonde
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for dropsonde

dropsonde
/ (ˈdrɒpsɒnd) /

noun

meteorol a radiosonde dropped by parachute

Word Origin for dropsonde

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