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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 ?
We can, however, create legislators, endow them with known preferences, have them vote in ways consistent with the spatial model on roll calls, and then use NOMINATE to estimate their preferences from the simulated roll-call data.
We chose the latter solution to preserve our ability to evaluate how well NOMINATE estimates ideal points on unidimensional roll-call data.
Selig, who will turn 64 on July 30, was elected as quickly as it took the owners to take a roll-call vote, having previously voted to dispense with the requirement that election be done by written ballot.
At its October meeting in Pasadena, the Board's Benefits and Program Administration Committee heard several staff proposals - from reducing the number of closed-door Investment Committee meetings, to publicly disclosing roll-call votes of investment decisions made in closed sessions, and requiring public disclosure of closed-session meeting transcripts, when a determination is made that disclosure would not harm the retirement system's investment objectives or expose the system to liability.
which conducts opinion research for 97 TV stations nationwide under the names Bullet-Poll, FlashPoll, Overnight Market Research and Voter Roll-Call, Tuesday announced that it has appointed Alex Storozynski as executive editor.