radiosonde

noun 0.721

dropsonde

noun 0.660

ionosphere

noun 0.652

rawinsonde

noun 0.647

photoion

noun 0.584

sonde

noun 0.579

sonobuoy

noun 0.563

ison

noun 0.562

insonation

noun 0.561

radio beacon

noun 0.545

depth sounder

noun 0.535

ionizer

noun 0.534

echo sounder

noun 0.526

sonar

noun 0.525

interferometer

noun 0.522

radioisotope

noun 0.520

ion selective electrode

noun 0.518

isoseismal

noun 0.518

photoionisation

noun 0.518

iodonium

noun 0.516

ion

noun 0.516

spectrum analyzer

noun 0.516

oscilloscope

noun 0.514

sounding rocket

noun 0.512

radioiodine

noun 0.511

dipole antenna

noun 0.511

isotone

noun 0.507

isodose

noun 0.504

scintillometer

noun 0.502

ionophore

noun 0.502