morse code(n = noun.communication) international morse code, morse - a telegraph code in which letters and numbers are represented by strings of dots and dashes (short and long signals);
is a kind of code
has parts: dit, dot, dah, dash

   a telegraphic code, in which dots, dashes, and spaces represent letters, numbers, and other elements of text. The original code was invented by Samuel B. Morse. The code now mostly used is the International Morse code, also referred to simply as the Morse code. [1913 Webster]

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