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sem·a·phore  (sĕmə-fôr′)
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Tweet n. 1. A visual signaling apparatus with flags, lights, or mechanically moving arms, as one used on a railroad. 2. A visual system for sending information by means of two flags that are held one in each hand, using an alphabetic code based on the position of the signaler's arms. tr. & intr.v.sem·a·phored, sem·a·phor·ing, sem·a·phores To send (a message) or to signal by semaphore. [Greeksēma, sign + -PHORE.] sem′a·phoricadj. sem′a·phori·cal·lyadv.  (click for a larger image)  (click for a larger image) semaphoretop: railroad signal bottom: flag signal system |
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