r-pump, opening when pressed from below.

DISCIPLINARIAN. An officer who maintains strict discipline and obedience
to the laws of the navy, and himself setting an example.

DISCOURSE, TO. An old sea term to traverse to and fro off the proper
course.

DISCOVERY SHIP. A vessel fitted for the purpose of exploring unknown
seas and coasts. Discovery vessels were formerly taken from the merchant
service; they have latterly been replaced by ships of war, furnished
with every improved instrument, and acting, on occasion, as active
pilots leading in war service.

DISCRETION. To surrender at discretion, implies an unconditional
yielding to the mercy of the conquerors.

DISEMBARK. The opposite of embark; the landing of troops from any vessel
or transport.

DISEMBAY. To work clear out of a gulf or bay.

DISEMBOGUE. The fall of a river into the sea; it has also been used for
the passage of vessels across the mouth of a river and out of one.

DISGUISE. Ships in all times have been permitted to assume disguise to
impose upon enemies, and obtain from countries in their possession
commodities of which they stand in need.

DISH, TO. To supplant, ruin, or frustrate.

DISLODGE. To drive an enemy from any post or station.

DI-SLYNG. _See_ SLYNG.

DISMANTLED. The state of a ship unrigged, and all her stores, guns, &c.,
taken out, in readiness for her being laid up in ordinary, or going into
dock, &c. &c. To dismantle a gun is to render it unfit for service. The
same applies to a fort.

DISMASTED. State of a ship deprived of her masts, by gales or by design.

DISMISS. Pipe down the people. To dismiss a drill from parade is to
break the ranks.

DISMISSION. A summary discharge from the service; which a court-martial
is empowered to inflict on any officer convicted of a breach of special
laws, though it cannot for minor offences which formerly carried death!

DISMOUNT, TO. To break the carriages of guns, and thereby render them
unfit for service. Also, in gun exercise, to lift a gun from its
carriage and deposit it elsewhere.

DISMOUNTED. The state of a cannon taken off a carriage, or when, by the
enemy's shot, it is rendered unmanageable. Also, cavalry on foot acting
as infantry.

DISOBEDIENCE. An infraction of the orders of a superior; punishable by a
court-martial, according to the nature and degree of the offence.

DISORDER. The confusion occasioned by a heavy fire from an enemy.

DISORGANIZE, TO. To degrade a man-of