a system of sending messages by holding the arms or two flags or poles in certain positions according to an alphabetic code
臂板信号;旗语。
[ count noun]an apparatus for signalling in this way, consisting of an upright with movable parts
臂板信号装置。
[ count noun]a signal sent by semaphore
旗语信号。
send (a message) by semaphore or by signals resembling semaphore
用旗语发出(信息)
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Josh stands facing the rear and semaphoring the driver's intentions to frustrated queues of following cars .乔希面向后方站立,用旗语向后面受阻的车流示意司机的意图。
"early 19th cent. (denoting a signalling apparatus): from French