Any visual signaling system with flags, lights, or mechanically moving arms.
A visual system for transmitting 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.
(computing) A bit, token, fragment of code, or some other mechanism which is used to restrict access to a shared function or device to a single process at a time, or to synchronize and coordinate events in different processes.
French: sémaphore (trans-bottom)
(transitive) or (intransitive) To signal using (or as if using) a semaphore.
He semaphored his intention by wearing his best suit. (rfex, intransitive use)
Dutch: signaleren, seinen (trans-mid) (trans-bottom)
Etymology:Borrowed in 1816 from sémaphore, formed in French from the Greek morphemes sÄma, sign and phoros, bearing, bearer.
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