DYELLE. A kind of mud-drag used for cleaning rivers on our eastern
coasts.
DYING MAN'S DINNER. A snatch of refreshment when the ship is in extreme
danger.
DYKE. From the Anglo-Saxon _dic_, a mound or bank; yet in some parts of
England the word means a ditch.
DYKE-CAM. A ditch-bank.
DYNAMOMETER. An instrument for measuring the amount of force, and used
for indicating the thrust or force of a screw-propeller, or any other
motor. There are many, varying in mode according to the express purpose
of each, but all founded on the same principle as the name
expresses--_power_ and _measure_, so that a steel-yard is the simplest
exponent.