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Webster 1913 Edition


Semaphore

Sem′a-phore

,
Noun.
[Gr.
σῆμα
a sign +
φέρειν
to bear: cf. F.
sémaphore
.]
A signal telegraph; an apparatus for giving signals by the disposition of lanterns, flags, oscillating arms, etc.

Definition 2021


Semaphore

Semaphore

See also: semaphore and sémaphore

German

Noun

Semaphore

  1. plural of Semaphor

semaphore

semaphore

See also: Semaphore and sémaphore

English

The semaphore signalling alphabet

Noun

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  1. Any visual signaling system with flags, lights, or mechanically moving arms.
    • 2008, Gene Weingarten, Old Dogs: Are the Best Dogs, Simon & Schuster, page 4 :
      Consider the wagging tail, the most basic semaphore in dog/human communication.
  2. A visual system for transmitting information by means of two flags that are held one in each hand, using an alphabetic and numeric code based on the position of the signaler’s arms.
  3. (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.

(Can we add an example for this sense?)

Translations

Verb

Lua error in Module:links at line 89: attempt to index local 'target' (a number value)

  1. (transitive, intransitive) To signal using (or as if using) a semaphore.
    • 1990, Peter Hopkirk, The Great Game, Folio Society 2010, p. 425:
      Minutes later, unseen by the defenders, he semaphored back across the valley that he was going to make a fresh attempt.

Translations