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roll

 [rōl]
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.

roll

(rōl),
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.

roll

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.

roll

(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:
http://www.amazon.com/Cancer-Handbook-Really-Working-Doctors/dp/1890612189/ref=pd_bbs_sr_6?ie=UTF8&s=books&qid=1229185619&sr=8-6
Read it and learn to understand why you are fooled day by day!

More discussions about roll
References in periodicals archive ?
Rolls that exhibit a defect known as "tin canning" are softer near the middle of the roll than at the edges.
PM1 and PM 2 have a gap former followed by a four roll cluster press with a shoe press in the third nip position.
Heat loss along the circumference near adjacent rolls is minimal, while heat loss in other areas is much higher.
Description: The curried chicken and shiitake mushroom spring roll here is a menu favorite.
Extrusion surface quality and tack values are exceptional with the single roll roller die.
Description: The sunfire spring rolls are long and crispy, and they're stuffed with stir-fried vegetable and spicy coconut chicken.
The pyrometer also is used to check the "side-to-side" temperature variation on the liners, single face web (open face), and medium at a point immediately after leaving the preheaters, pressure rolls, preconditioners, and hot plates.
There are usually several of these rolls in series, and their function is to "flutter" the paper web to improve its formation.
Our roll technology operation in Germany has not been profitable for the past several years largely because the business lacks the scale to compete effectively with its two largest competitors in the European market, both of which are headquartered in Germany.