On the sea floor, a relatively narrow, deep depression with steep sides, the bottom of which generally has a continuous slope.
Related Terms |
SHELL PLATING
The plates forming the outer side and bottom skin of the hull
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FARDAGE
A wood placed in bottom of ship to keep cargo dry
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GROUND SWELL
A long, deep swell or undulation of the ocean often caused by a long-continued gale and sometimes a seismic disturbance and felt even at a remote distance. In shallow water the swell rises to a prominent height.
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HOLDING GROUND
The bottom ground of an anchorage. The expression is usually used with a modifying adjective to indicate the quality of the holding power of the material constituting the bottom
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PLAIN
On the sea floor, a flat, gently sloping or nearly level region. Sometimes called ABYSSAL PLAIN in very deep water.
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UP FLOW
The operation of an ion-exchange unit in which solutions are passed in at the bottom and out at the top of the container.
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FOOT
1. the lower edge of any sail. 2. the bottom of a mast. 3. a measurement of 12 inches.
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DAVY JONES LOCKER
An idiom for the bottom of the sea.
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BREAM
To clean a ship's bottom by burning off seaweed
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BUOYED UP
Lifted by a buoy, especially a cable that has been lifted to prevent it from trailing on the bottom.
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