| semaphore |
| Definition - Any system of signaling. |
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Example - Smoke signals and traffic lights. |
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Etymology - The word derives from the Greek sema, sign + phoros, bearer. |
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Oxford English Dictionary - Its first citation is from 1816: "The improved Semaphore has been erected on the top of the Admiralty." (Ann. Reg., Chron. 85/2) |
