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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.


(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 ? Rolled hot-rolled hexagonal other, without additional processing, including rolled up after rolling, of unalloyed steels
Figure 6(a) shows the yield strength in terms of the rolling temperature for steel sheets rolled with two different rolling reduction percentages.
Steels rolled at T = 870[degrees]C with a rolling reduction of 30% shows the highest formability with a large total elongation value of 22.9%.
In ODF maps representing the steels rolled at T = 830[degrees]C, preservation of the structure component of {111} <011 > depicts the recovery phenomenon, which occurred when the temperature was increased from 790[degrees]C to 830[degrees]C.
The highest value of YPE% related to the samples rolled with the lowest rolling temperature and the lower level of rolling reduction indicates that a low reheating temperature is not sufficient to reduce the dislocation density drastically, so the large amount of mobile dislocations was arrested by the solute atoms of N and C.
It is observed that the smooth yielding behavior is revealed in the rolled steels subjected to the higher level of rolling reduction.
A higher yield strength for the steel sheets rolled at T = 790[degrees]C can be due to the fact that the dislocations formed during plastic defamation at this temperature did not have sufficient internal energy to move and subsequently to annihilate the other dislocation with the opposite sign.
(2) In this work, the highest elongation % values as the formability property and the lowest yield point elongation and fluting intensity, which are the desired results for our study, were obtained for the strip that was warm rolled at T = 870[degrees]C with a 30% rolling reduction.
If both property (that is, shares of stock) and cash are received in an eligible distribution, either the property, the cash or both can be rolled over.
Rolled pigs that have been rolled for a fifteen minute period will have up to a fifteen degree difference in temperature between the outside and the center of the pig, forcing the calender to finish the function of the warm-up mill.