The term MORSE CODE ELEMENT can be broken down into two parts: 'Morse Code' and 'ELEMENT'. Morse Code is a system of communication developed in the early 19th century by Samuel Morse, which uses a series of dots and dashes to represent letters, numbers, and symbols. The ELEMENT DAH, with three letters, is one of the elements used in Morse Code. It is represented by a dash, and is used to separate letters and words.