roll

(redirected from roll back)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Wikipedia.

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.
..... Click the link for more information.
.
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 ?
The plots shown in Figures 1, 2, 3, 4, 5 show plots of these parameters or called roll back indicators charts for selected pressure altitude test conditions conducted on this test article.
On 13 July, world leaders at the 3rd International Financing for Development (FfD) meeting in Addis Ababa, Ethiopia, will discuss the new World Health Assembly endorsed Global Technical Strategy for Malaria 2016-2030 and the Roll Back Malaria Partnership's Action and Investment to defeat Malaria 2016-2030 (AIM) - for a malaria-free world.
Roll Back Home is presented in a sketched and animated flip book art style.
Roll Back Malaria is a worldwide public-private partnership created in 1998 by the World Health Organization (WHO), the UN Development Programme (UNDP), the United Nations Children's Fund (UNICEF), and the World Bank (WB).
We need to roll back some of the green regulations that are putting up bills."
Now in her 50s, both body and voice were as good as ever as she Roll back: Siobhan Fahey.
ANKARA, Apr 14, 2010 (TUR) -- Turkish Central Bank (CB) which announced its exit strategy from crisis Wednesday said it would gradually roll back the crisis measures.
Summary: Israel launched air strikes in the Gaza Strip early Wednesday hitting tunnels as Palestinian prime minister said that Israel must begin to "roll back" its occupation of the Palestinian
Obama's policy of roll back of Iranian influence counted on a two-step process:Aa Supporting a coalition of clerical dissidents, pro-Western liberals, dissident democrats and right-wing surrogates of the US.
Exercise 1: Quadriceps massage Roll back and forward on roller and aim to do approximately 1-3 minutes per exercise.
It is quite normal for the car to roll back on hills until you accelerate.
This system recovery program lets users roll back their entire system, including files, applications, personal settings and passwords whether the operating system is able to load or not.