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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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.

roll

1. A rounded strip fastened to, and running along, the ridge of a roof.
2. In a roof covered

roll

rollclick for a larger image
The motion of an aircraft about its longitudinal axis. The rolling motion is controlled primarily by ailerons.

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
References in periodicals archive ?
All the patients were operated by sub-millimeter 'Phaconit'6 surgery with implantation of rollable IOL in 40 cases all cases had and Acrylic foldable IOL in remaining 40 cases.
He sees demand, particularly from video gamers, for Willow-based curved screens, but remains less convinced about rollable or foldable screens.
The chemistry of the new electronics and electrics is key to its future, whether it is invisible, tightly rollable, biodegradable, edible, employing the memristor logic of the human brain or possessing any other previously- impossible capability in a manufactured device.
Asked about the state's decades-long drought for such a center, Sreenivasan, a professor of mechanical engineering at UT-Austin, noted the steep competition for the grant and said that, with concepts such as rollable batteries moving closer to reality, he believed the national mood had finally shifted in a way that favors the strengths of UT-Austin's Cockrell School of Engineering.
This cable is composed of rollable optical fiber ribbon with standard 0.
In addition to traditional flat screens, OLEDs can be applied to many different substrates, making curved and even flexible or rollable screens possible.
Geraldine Nichols, from the team behind the project, said: "Everyone is invited to submit artwork that could be drawings, paintings, doodles, photos, textiles, poems - in fact, anything that is analogue and rollable.
None are yet transparent so there is work to be done because most of them are potentially transparent, low cost, tightly rollable and foldable and even lighter in weight.
Loy depicts the height of this joint overtaking via hysteria--an uncont rollable laughter that affirms that the self dissolute is the only self there is.
Depending on the beach's topography, a hard, man-made surface can be provided up to the point where the sand may be naturally compact enough to provide secure, rollable conditions.
While the technology is still in its infancy, it is seen as having broad implications for such retail-specific applications as on-shelf pacing signs and foldable, rollable displays.