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roll |
Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Wikipedia, Hutchinson | 0.01 sec. |
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roll, in aviation: see airfoil airfoil, surface designed to develop a desired force by reaction with a fluid, especially air, that is flowing across the surface. For example, the fixed wing surfaces of an airplane produce lift, which opposes gravity. ..... Click the link for more information. . 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 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) (textiles) A continuous strand made by rolling, rubbing, or twisting fibers. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| There were days when my heart was volcanic As the scoriac rivers that roll -- As the lavas that restlessly roll Their sulphurous currents down Yaanek, In the ultimate climes of the Pole -- That groan as they roll down Mount Yaanek In the realms of the Boreal Pole. The roll of the drum at that unquiet crisis seemed to go through the streets, less as the martial music of the soldiers, than as a muster-call to the inhabitants themselves. "If this fool," she said, "should have an uneasy dream and roll into the well men would say that I did it. |
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