semaphore
v.
send a message by semaphore, use handheld flags to communicate a message
n.
method of communication based on the use of handheld flags which are moved to represent different letters of the alphabet; (Computers) status flag used to restrict access to shared resources by locking the resource being used and preventing access
Semaphore
A semaphore or optical telegraph is an apparatus for conveying information by means of visual signals, with towers with pivoting blades or paddles, shutters, in a matrix, or hand-held flags etc. Information is encoded by the position of the mechanical elements; it is read when the blade or flag is in a fixed position. In modern usage it refers to a system of signaling using two handheld flags. Other forms of optical telegraphy include
ship flags,
Aldis lamps, and
Heliographs.
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Semaphor (das)
n.
semaphore, method of communication based on the use of handheld flags which are moved to represent different letters of the alphabet
sémaphore (m)
n.
semaphore, status flag used to restrict access to shared resources by locking the resource being used and preventing access
Semaphore
(n.)
A signal telegraph; an apparatus for giving signals by the disposition of lanterns, flags, oscillating arms, etc.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
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