Found 1 items, similar to C Q D.
English → English (gcide)
Definition: C Q D
C Q D
\C Q D\
In radiotelegraphy, the letters signified by the code call
formerly used (cf. S O S) by ships in distress, formed by
combining the code call C Q (formerly used as a general call
for all stations) with D for distress.
[Webster 1913 Suppl.]