Morse code /ˌmɔːs ˈkəʊd $ ˌmɔːrs ˈkoʊd/ BrE AmE noun [uncountable]
a system of sending messages in which the alphabet is represented by signals made of ↑ dot s (=short signals) and ↑ dash es (=long signals) in sound or light
in Morse code
a message in Morse code