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semaphorist

noun
sem·​a·​phor·​ist | \ -fȯr-\
plural -s

Definition of semaphorist 

: one who operates a semaphore or signals by semaphore

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First Known Use of semaphorist

1882, in the meaning defined above

History and Etymology for semaphorist

semaphore entry 1 + -ist

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The first known use of semaphorist was in 1882

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