call letters
plural noun
1.
letters of the alphabet or such letters in combination with numbers for identifying a radio or television station, an amateur radio transmitting device, or the like.
Also called
call sign
.
Origin
1910-15
Examples from the web for
call letters
Not even sure of the
call letters
or where they are located.
British Dictionary definitions for
call letters
call letters
plural noun
1.
the call sign of an American or Canadian radio station, esp that of a commercial broadcasting station