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Many of the species are brilliantly colored. The common European species (Coracias garrula) has the
head, neck, and under parts light blue varied with green, the scapulars chestnut brown, and the tail
blue, green, and black. The broad-billed rollers of India and Africa belong to the genus Eurystomus, as
the oriental roller and the Australian roller, or dollar bird The latter is dark brown on the head and neck,
sea green on the back, and bright blue on the throat, base of the tail, and parts of the wings. It has a
silvery-white spot on the middle of each wing.
10. (Zoöl.) Any species of small ground snakes of the family Tortricidæ.
Ground roller (Zoöl.), any one of several species of Madagascar rollers belonging to Atelornis and
allied genera. They are nocturnal birds, and feed on the ground. — Roller bolt, the bar in a carriage
to which the traces are attached; a whiffletree. [Eng.] — Roller gin, a cotton gin inn which rolls are
used for separating the seeds from the fiber. — Roller mill. See under Mill. — Roller skate, a
skate which has small wheels in the place of the metallic runner; — designed for use in skating upon a
smooth, hard surface, other than ice.
Rolley
(Roll"ey) n. [Probably fr. roll.] A small wagon used for the underground work of a mine. Tomlison.
Rollic
(Rol"lic) v. i. [imp. & p. p. Rollicked (-likt); p. pr. & vb. n. Rollicking.] [Corrupt. fr. frolic,
under the influence of roll.] To move or play in a careless, swaggering manner, with a frolicsome air; to
frolic; to sport; commonly in the form rollicking. [Colloq.]
He described his friends as rollicking blades. T. Hook. Rolling
(Roll"ing) a.
1. Rotating on an axis, or moving along a surface by rotation; turning over and over as if on an axis or a
pivot; as, a rolling wheel or ball.
2. Moving on wheels or rollers, or as if on wheels or rollers; as, a rolling chair.
3. Having gradual, rounded undulations of surface; as, a rolling country; rolling land. [U.S.]
Rolling bridge. See the Note under Drawbridge. — Rolling circle of a paddle wheel, the circle
described by the point whose velocity equals the velocity of the ship. J. Bourne. — Rolling fire (Mil.),
a discharge of firearms by soldiers in line, in quick succession, and in the order in which they stand. —
Rolling friction, that resistance to motion experienced by one body rolling upon another which arises
from the roughness or other quality of the surfaces in contact. — Rolling mill, a mill furnished with
heavy rolls, between which heated metal is passed, to form it into sheets, rails, etc. — Rolling press.
(a) A machine for calendering cloth by pressure between revolving rollers. (b) A printing press with a
roller, used in copperplate printing. — Rolling stock, or Rolling plant, the locomotives and vehicles
of a railway. — Rolling tackle (Naut.), tackle used to steady the yards when the ship rolls heavily.
R. H. Dana, Jr.
Rolling-pin
(Roll"ing-pin`) n. A cylindrical piece of wood or other material, with which paste or dough
may be rolled out and reduced to a proper thickness.
Rollway
(Roll"way`) n. A place prepared for rolling logs into a stream.
Rolly-poly
(Roll"y-po`ly) n. A kind of pudding made of paste spread with fruit, rolled into a cylindrical
form, and boiled or steamed. — a. Shaped like a rolly-poly; short and stout. [Written also roly- poly.]
Rolly-pooly
(Roll"y-pool`y) n. [Etymol. uncertain.] A game in which a ball, rolling into a certain place,
wins. [Written also rouly-pouly.]
Roly-poly
(Ro"ly-po`ly) n. & a. Rolly- poly.
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