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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 ?
Anuj Dyal, Director, Corporate Communication, DMRC, said, Managing Director of DMRC Dr Mangu Singh today approved orders for suspension of four officials connected with yesterday's incident involving a train in the Kalindi Kunj maintenance depot which rolled back and hit a wall.
The club has rolled back prices on over 14,000 season seats at the Arrowhead Pond of Anaheim, an average of 5.
Service Provisioning Module provides full commit/rollback transaction management services that are used to treat complex, multi-system updates as atomic transactions that must either complete in full or be rolled back to the starting-point.
Bigger-ticket items like bookcases and office chairs have also been rolled back to accommodate the increased belt-tightening in today's marketplace.
You should know that nearly one in ten used cars has had its odometer rolled back.
Using this combination of products, the repository can be rolled back to a "clean" state, prior to the corruption, and then rolled forward to any point in time to restore information.
Nearly one in 10 used cars has had its odometer rolled back -- which is illegal in every state, yet easy to do.
Using KeyVision, Registry changes on any workstation or group can be rolled back to the previous day or specified event.
The administrative regulations (RH-291) used to determine rebate amounts contain a formula which is applied to a company's verifiable financial data to determine its rate of return (profitability) for 1989, the year rates were to be rolled back under the initiative.
express mail only) o Worksheets showing rebate calculations o Prop 103 Rebates Paid in 1995 o Prop 103 Rebates Paid 1991-1994 o List of Companies with Zero Rollbacks o List of Companies that Previously Rolled Back Rates o List of Open Cases o Prop 103 Status Report o Fact Sheet: Factors that Affect Rollbacks o Fact Sheet: Long Road to Rollbacks (Legal Process)
In addition, 17 more companies have provided documentation to the Department of Insurance that they had previously rolled back rates and/or paid refunds to satisfy their obligations under Prop.