sheet

sill

 or sheet

In geology, a tabular igneous intrusion emplaced parallel to the bedding of the enclosing rock. Although they may have inclined orientations, nearly horizontal sills are most common. Sills may range from a few inches to hundreds of feet thick and up to hundreds of miles long. They include rock compositions of all types.

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sheet¹

1. a large rectangular piece of cotton, linen, etc., generally one of a pair used as inner bedclothes

2. a page of stamps, usually of one denomination and already perforated

3. any thin tabular mass of rock covering a large area

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sheet²

Nautical a line or rope for controlling the position of a sail relative to the wind

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sheet [shēt]

(geology)

A thin flowstone coating of calcite in a cave.

A tabular igneous intrusion, especially when concordant or only slightly discordant.

(hydrology)

sheetflood

(materials)

A material in a configuration similar to a film except that its thickness is greater than 0.25 millimeter.

(mathematics)

A portion of a surface such that it is possible to travel continuously between any two points on it without leaving the surface.

A part of a Riemann surface such that any extension results in a multiple covering of some part of the complex plane over which the surface lies.

(naval architecture)

A rope or chain used to haul the clew of a sail out toward the yard arm or downward toward the deck and aft.