A ship which acts as a mobile or fixed base for other ships and submarines or supports a naval base.
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BUMPKIN
The spar projecting from stern of ship
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HYDROFINISHING
A process for treating raw extracted base stocks with hydrogen to saturate them for improved stability.
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TRAMP FREIGHTER
A cargo ship engaged in the tramp trade.
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CORDAGE
Ropes in the rigging of a ship
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WEATHER SIDE
The side of a ship exposed to the wind.
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MOAT
An annular depression that may not be continuous, located at the base of many sea mounts, islands, and other isolated elevations of the sea floor, analogous to the moat around a castle.
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GROUND FOG
A fog that obscures less than six tenths of the sky, and does not extend to the base of any clouds
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HOUR-GLASS EFFECT
A radarscope phenomenon which appears as a constriction or expansion of the display near the center of the plan position indicator, which can be caused by a nonlinear time base or the sweep plot starting on the radar indicator at the same instant as the transmission of the pulse. The phenomenon is most apparent when in narrow rivers or close to shore.
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BASE
A material which neutralizes acids. An oil additive containing colloidally dispersed metal carbonate, used to reduce corrosive wear.
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DOGWATCH
A short, evening period of watch duty on a ship
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