decremeter

[ dek-ruh-mee-ter, dih-krem-i-ter ]

noun

1. an instrument for measuring the damping of an electromagnetic wave train.

Word History and Origins

Origin of decremeter¹

First recorded in 1910–15; decre(ment) + -meter

Example Sentences

His previous inventions have been the invaluable radio compass, the radio fog signal system, the mobile radio beacon to protect ships in fog, the decremeter which measures wave lengths and dampens radio oscillations, the Kolster radio receiving set.

From Time Magazine Archive