トン

noun

dot (Morse code)

Colloquial term for the short signal in Morse code; the formal term is 短点 (たんてん).

See also: 短点 (たんてん)

• モールス信しん号ごうで「トン」は短みじかい音おと、「ツー」は長ながい音おとだ。

  In Morse code, 'ton' is a short sound and 'tsuu' is a long sound.