['dreikstәun]
n.
(玩打水漂游戏用的)石片

Drakestone \Drake"stone\, n.
A flat stone so thrown along the surface of water as to skip
from point to point before it sinks; also, the sport of so
throwing stones; -- sometimes called {ducks and drakes}.

Internal earthquakes, that, not content with one throe,
run along spasmodically, like boys playing at what is
called drakestone. --De Quincey.