semaphoring Definition

semaphore
noun

1. A signalling device, consisting primarily of a pole with arms that can be set in different positions.
2. A system of signalling in which flags, or simply the arms, are held in positions that represent individual letters and numbers.

verb

tr & intr
semaphored, semaphoring
1. To signal using semaphore or a semaphore.

Derivative: semaphoric
adj

Etymology: Early 19c: French, from Greek sema sign + -phore.