roll (redirected from drum roll)

roll, in aviation: see airfoil.

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roll

1. a cylinder used to flatten something; roller

2. a very rapid beating of the sticks on a drum

3. a flight manoeuvre in which an aircraft makes one complete rotation about its longitudinal axis without loss of height or change in direction

4. a throw of dice

5. a bookbinder's tool having a brass wheel, used to impress a line or repeated pattern on the cover of a book

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roll [rōl]

(geology)

A primary sedimentary structure produced by deformation involving subaqueous slump or vertical foundering.

(mechanics)

Rotational or oscillatory movement of an aircraft or similar body about a longitudinal axis through the body; it is called roll for any degree of such rotation.

(mechanical engineering)

A cylinder mounted in bearings; used for such functions as shaping, crushing, moving, or printing work passing by it.

(mining engineering)

horseback

(textiles)

A continuous strand made by rolling, rubbing, or twisting fibers.