society > communication > telecommunication > radio communications > [noun] > radio wave > length of > specific > short waveband for private communication (3)
(also with lower-case initials) a band of short-wave radio frequencies made available for local communication among private individuals, esp. via…
(also with lower-case initials) = Citizens Band n. at compounds 3b.
= Citizens Band n. at citizen, n. adj.compounds 3b; a Citizens' Band radio. Frequently attributive, esp. as CB radio.