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1. to turn along an axis while moving forward along a surface.
2. the act of rolling.
3. an object that has been rolled into a cylindrical shape.
pelvic roll pelvic rotation.
trochanter roll a wedge (usually a rolled towel) placed from the crest of the ilium to midthigh to prevent external rotation of the hip when the patient is in a recumbent position.
Use of trochanter roll to prevent external rotation of hip.
See illustration.


1. A mass or structure of a rounded or cylindric form created by rotation of a layer of material around its own long axis.
2. The process by which a round entity is moved by a pressure gradient, as when leukocytes move along a blood vessel wall.


Etymology: OFr, rolle
intrinsic joint movements on an axis parallel to the articulating surface. The axis can remain stationary or move in a plane parallel to the joint surface.


(rol) [Fr. roulle, scroll fr. L. rotula, small wheel]
A usually solid, cylindrical structure.

cotton roll

A cylindrical mass of purified and sterilized cotton used as packing or absorbent material in various dental procedures.

ilial roll

A sausage-shaped mass in the left iliac fossa. It is due to a collection of feces in or induration of the walls of the sigmoid colon.

lumbar roll

An air-filled, foam, or gel cushion placed behind the lower back as a support.

Patient care

It is used to maintain the normal lordotic curvature of the lumbar spine and thereby to relieve pressure on commonly injured structures such as discs and facet joints.

scleral roll

See: spur, scleral

trochanter roll

A cushion or pillow used to hold the hip of a postoperative patient in neutral position.
See: Trochanter Roll

Patient discussion about roll

Q. What roll does the sun have in causing cancer

A. Hi again:

This is a book for everybody here:
Read it and learn to understand why you are fooled day by day!

More discussions about roll
References in periodicals archive ?
The device, which is reportedly the first of its kind, is expected to be introduced to the market this year, using Polymer Vision rollable display technology to incorporate a display which is larger in size than the handset.
In addition, ICI Paints says it continues to "exploit" what it calls innovations brought to market in 2003, such as the international rollout of Magic White (including its extension into trim products), Easy Can Polycell basecoat and Cuprinol Rollable.
The program for in-ad couponing by retailers has been intensified this year, says King, and five-level rollable basket racks have become a "smashing success.
After showcasing its new 8K TV, LG today unveiled an all-new rollable TV with 4K resolution.
Samsung has announced the patenting of a tablet-like rollable display device with an in-built fingerprint sensor.
Flexibility: This is the part that makes Lenovo's announcement special - a foldable, rollable PC is something that hasn't been attempted before and not without reason - there are many working parts of a PC including a large battery and mostly a fan-based cooling system that will be difficult to put into this kind of a form factor, even if you have a PC-size flexible display.
LG Rollablw displays , it's time for rollable displays.
The space features a welcome area, casual white seating, a private meeting room for quiet one-on-one discussions, and a rollable wood floor to finish the sustainable and inviting look Helios wanted in order to stand out at the show.
The performance of LIBs has not been sufficient either, thereby difficult to apply to flexible consumer electronics including rollable displays.
Polymer Vision has developed flexible, rollable displays that can be used in areas ranging from eReaders and smart cards to eTickets and smart phones.
Polymer Vision's flexible and rollable display backplane technology, combined with the robust colors from Sun Chemical's pigmented fluids and the University of Cincinnati's innovative EFD pixel architecture, will enable the development and manufacture of a variety of end-use products, including smart windows, point-of-purchase displays, and eventually, ultrathin devices with high-quality video capability.