on a roll definition of on a roll in the Free Online Encyclopedia.

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.
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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

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.

roll

rod target

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

2. In a roof covered

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on a dime
on a dime
on a dime
on a fast track
on a first-name basis
on a fool's errand
on a footing with
on a full stomach
on a full stomach
on a full stomach
on a full stomach
on a hiding to nothing
on a hiding to nothing
on a higher floor
on a knife-edge
on a level with
on a lower floor
On a mat appear
On a mat appear
On a Mission
on a moment's notice
On a par
On a par
on a par with
On A Pedestal
on a platter
on a platter
on a power trip
on a proper scale
on a regular basis

on a roll

On a Sensual Note
on a shoestring
on a short fuse
on a short fuse
on a short fuse
on a short fuze
on a short fuze
on a short fuze
On a Side Note
on a silver platter
on a silver platter
on a silver platter
on a slippery slope
on a string
On a sudden
On a suddenty
on a suitable scale
on a tangent
on a tight leash
On a Totally Irrelevant Subject
On A Totally Unrelated Subject
On a wind
On a Wing and a Prayer
On Accepting First Principles
on account
on account
on account
on account
on account
on account

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