Designator for the attack submarine employed by the German Navy. The term derives from the German word "unterseeboot" meaning submarine, and each vessel bore the designator "U" followed by an identification number, such as "U-46".
Ultra High Frequency. A range of radio frequencies from 300 to 3000 megahertz.
See Also:
radio, marine radio
Term:
unbend (v)
Definition:
To remove a sail from a stay or spar.
See Also:
bend
Term:
under command (n)
Definition:
Having properly functioning steering and propulsion, and being under the authority or direction of a legitimate ship’s officer, or having the capacity to respond to orders or directions.
See Also:
not under command
Term:
under the lee (adv)
Definition:
Located in the calm area to the lee of an island or peninsula.
See Also:
lee shore
Term:
under way (adv)
Definition:
With the anchor free of the bottom.
See Also:
weigh anchor
Term:
undersea (adv)
Definition:
Beneath the surface of the ocean
See Also:
submerged
Term:
undersea (adj)
Definition:
1) Describing anything capable of operating beneath the surface of the ocean 2) Referring to a plant or animal that lives beneath the surface of the ocean
See Also:
submarine
Term:
undertow (n)
Definition:
The force of water drawing away from a beach after a wave has finished breaking.
Term:
underwater (adj)
Definition:
Referring to the external parts of the ship below the waterline.
See Also:
submerged
Term:
underway (adj)
Definition:
Describing an operation that takes place while the ship is moving. “Underway repairs are essential to good maintenance.”
Term:
underway (n)
Definition:
In motion, having way on. Not at dock, or anchored or aground.
See Also:
under weigh
Term:
undock (v)
Definition:
To let go the lines and maneuver away from the dock.
Term:
unfasten (v)
Definition:
To release a mooring pennant.
See Also:
unmoor
Term:
uniform (n)
Definition:
1) Matching clothing worn by seamen in military or official positions. 2) The phonetic term used on radio transmissions to represent the letter "u".
See Also:
phonetic alphabet
Term:
union (n)
Definition:
The upper quarter of a flag by the hoist.
See Also:
flag, hoist
Term:
union jack (n)
Definition:
A flag displaying only the national union
See Also:
flag, ensign
Term:
unlay (v)
Definition:
To turn back the twisted ends of a nine-strand rope in preparation for splicing.
See Also:
splice
Term:
unmoor (v)
Definition:
To cast off a mooring pennant and get underway.
See Also:
unfasten
Term:
unreeve (v)
Definition:
To remove a line from a block or thimble.
See Also:
reeve
Term:
unship (v)
Definition:
To unfasten and remove a piece of equipment from its normal position “Let’s unship the outboard motor and take it to the shop.”
See Also:
ship
Term:
unsling (v)
Definition:
To release a cargo net from the hauling ropes.
See Also:
stevedore knot
Term:
unstep (v)
Definition:
To haul a mast out of the vessel.
See Also:
step, mast step
Term:
upper branch (n)
Definition:
The half of a plane of a meridian that intersects a given location on a sphere.
See Also:
lower branch
Term:
upriver (adv)
Definition:
Against the current, toward the source of the river.
