- Present participle of semaphore.
Variant of semaphore
- any apparatus for signaling, as the arrangement of lights, flags, and mechanical arms on railroads
- a system of signaling by the use of two flags, one held in each hand: the letters of the alphabet are represented by the various positions of the arms
- any system of signaling by semaphore
Origin of semaphoreFrench sémaphore ; from Classical Greek sēma, sign (see semantic) + -phoros: see -phore