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.
An international system that uses a series of dots and dashes to represent letters, punctuation and numbers. When an AAC user uses this system, the dots and dashes are more likely to be high or low pitch tones (Beukelman & Mirenda, 1992)