- 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.
verb (semaphor, ing)
- Dutch: semafoor
- French: sémaphore
- (transitive) or (intransitive) To signal using (or as if using) a semaphore.
- He semaphored his intention by wearing his best suit. (rfex, intransitive use)
Etymology: Borrowed in 1816 from sémaphore, formed in French from the Greek morphemes sÄma, sign and phoros, bearing, bearer.
- Dutch: signaleren, seinen
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