0 a signal that uses smoke from a fire to represent words, used to send messages over long distances
The spotting charge, which was designed to detonate on impact, had sufficient power only to initiate the release of a small smoke signal.
This may include a horseshoe buoy or lifebuoy, a danbuoy or man overboard pole, and perhaps a floating smoke signal.
Some of the smoke signals rising from the king's own camp appeared to confirm the grounds for an optimistic prognosis.
We might be relying on smoke signals today had that been the case.
It is not a question of government by smoke signals; it is not government at all.
I am concerned that there are still not very clear smoke signals about where the process is going.
Initially, they were unaware of the barbarity taking place on the other islands and sent pre-arranged smoke signals announcing their finds.
The use of smoke signals, beacons, reflected light signals, and flag semaphore signals are early examples.
