huff-duff
[huhf-duhf]
/ ˈhʌfˌdʌf /
NOUN
direction finder
Synonyms
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Its communications systems were supplying information to German submarines, and its American factories were assembling "Huff-Duff," the High Frequency Direction Finder used by the Allies to save their ships from German torpedoes.
From Time Magazine Archive
