roll

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roll,

in aviation: see airfoilairfoil,
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.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

roll

1. A rounded strip fastened to, and running along, the ridge of a roof.
2. In a roof covered
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

roll

rollclick for a larger image
The motion of an aircraft about its longitudinal axis. The rolling motion is controlled primarily by ailerons.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Other modes of isolation used by these house officers were cotton rolls alone or cotton rolls with suction.
After collection, either direct or with use of cotton rolls, the samples were stored in closed containers at -20 [degrees]C for periods of up to several weeks.
Furthermore, the additional time is compensated by better operating field, offered by rubber dam including, controlling saliva contamination, eliminating the frequent change of cotton roll and limiting the moments of tongue and lips.
Cotton rolls, or a dry angle that is cut in half and fitted into the anterior facial vestibule, aid in retraction if the lip is too slippery to retract easily.
In case of accident, the patients are not provided with bandage and cotton rolls.
He said that they got medicines worth over Rs 500 million annually from the government adding that cotton rolls, IV sets and dressing occupied a large space because of their volume.
In gastroscopic evaluation the foreign body was diagnosed as cotton rolled bandage at the body of stomach with the exact location.
The seized items included two live explosive belts that were defused, a gas oven connected by metal and plastic tubes attached to a set of pressure pots and a 24 laboratory flasks, 10 high containers of chemical mixtures, cotton rolls, thick fabrics, tapes, and wax pastes.
Ahmad Abdullah Bin Lahej, Dubai Customs' Director of Passenger Programmes, noted that confiscated articles included talismans, amulets, beads, animal skins, sorcery knives, magic teaching books, bags containing fish skeletons, animal bones, ampoules full of blood and other liquids, animal drawings, strings, pieces of charcoal, finger rings, oysters, leaves, powders, cotton rolls used in sorcery, thread and some dark materials.