Rock

See Roc.

A distaff used in spinning; the staff or frame about which flax is arranged, and from which the thread is drawn in spinning.

Sad Clotho held the rocke, the whiles the thread
By grisly Lachesis was spun with pain,
That cruel Atropos eftsoon undid.

- Spenser.

A large concreted mass of stony material; a large fixed stone or crag. See Stone.

Come one, come all! this rock shall fly
From its firm base as soon as I.

- Sir W. Scott.

(Geol.) Any natural deposit forming a part of the earth's crust, whether consolidated or not, including sand, earth, clay, etc., when in natural beds.

That which resembles a rock in firmness; a defense; a support; a refuge.

The Lord is my rock, and my fortress.

- 2 Sam. xxii. 2.

Fig.: Anything which causes a disaster or wreck resembling the wreck of a vessel upon a rock.

(Zool.) The striped bass. See under Bass.

Rock alum
Same as Roche alum.

Rock barnacle
(Zool.) a barnacle (Balanus balanoides) very abundant on rocks washed by tides.

Rock bass
a -	(Zool.) The stripped bass
b -	The goggle-eye.
c -	The cabrilla. Other species are also locally called rock bass.

Rock builder
(Zool.) any species of animal whose remains contribute to the formation of rocks, especially the corals and Foraminifera.

Rock butter
(Min.) native alum mixed with clay and oxide of iron, usually in soft masses of a yellowish white color, occuring in cavities and fissures in argillaceous slate.

Rock candy
a form of candy consisting of crystals of pure sugar which are very hard, whence the name.

Rock cavy
(Zool.) See Moco.

Rock cod
a -	(Zool.) A small, often reddish or brown, variety of the cod found about rocks andledges
b -	A California rockfish.

Rock cook
a -	(Zool.) A European wrasse (Centrolabrus exoletus
b -	A rockling.

Rock cork
(Min.) a variety of asbestus the fibers of which are loosely interlaced. It resembles cork in its texture.

Rock crab
(Zool.) any one of several species of large crabs of the genus C, as the two species of the New England coast (Cancer irroratus and Cancer borealis). See Illust. under Cancer.

Rock cress
(Bot.) a name of several plants of the cress kind found on rocks, as Arabis petræa, Arabis lyrata, etc.

Rock crystal
(Min.) limpid quartz. See Quartz, and under Crystal.

Rock dove
(Zool.) the rock pigeon; - called also rock doo.

Rock drill
an implement for drilling holes in rock; esp., a machine impelled by steam or compressed air, for drilling holes for blasting, etc.

Rock duck
(Zool.) the harlequin duck.

Rock eel
(Zool.) See Gunnel.

Rock goat
(Zool.) a wild goat, or ibex.

Rock hopper
(Zool.) a penguin of the genus Catarractes. See under Penguin.

Rock kangaroo
(Zool.) See Kangaroo, and Petrogale.

Rock lobster
(Zool.) any one of several species of large spinose lobsters of the genera Panulirus and Palinurus. They have no large claws. Called also spiny lobster, and sea crayfish.

Rock meal
(Min.) a light powdery variety of calcite occuring as an efflorescence.

Rock milk
(Min.) See Agaric mineral, under Agaric.

Rock moss
a kind of lichen; the cudbear. See Cudbear.

Rock oil
See Petroleum.

Rock parrakeet
(Zool.) a small Australian parrakeet (Euphema petrophila), which nests in holes among the rocks of high cliffs. Its general color is yellowish olive green; a frontal band and the outer edge of the wing quills are deep blue, and the central tail feathers bluish green.

Rock pigeon
(Zool.) the wild pigeon (Columba livia) Of Europe and Asia, from which the domestic pigeon was derived. See Illust. under Pigeon.

Rock pipit
(Zool.) See the Note under Pipit.

Rock plover
a -	(Zool.) The black-bellied, or whistling, plover
b -	The rock snipe.

Rock ptarmigan
(Zool.) an arctic American ptarmigan (Lagopus rupestris), which in winter is white, with the tail and lores black. In summer the males are grayish brown, coarsely vermiculated with black, and have black patches on the back.

Rock rabbit
(Zool.) the hyrax. See Cony, and Daman.

Rock ruby
(Min.) a fine reddish variety of garnet.

Rock salt
(Min.) cloride of sodium (common salt) occuring in rocklike masses in mines; mineral salt; salt dug from the earth. In the United States this name is sometimes given to salt in large crystals, formed by evaporation from sea water in large basins or cavities.

Rock seal
(Zool.) the harbor seal. See Seal.

Rock shell
(Zool.) any species of Murex, Purpura, and allied genera.

Rock snake
(Zool.) any one of several large pythons; as, the royal rock snake (Python regia) of Africa, and the rock snake of India (Python molurus). The Australian rock snakes mostly belong to the allied genus Morelia.

Rock snipe
(Zool.) the purple sandpiper (Tringa maritima); - called also rock bird, rock plover, winter snipe.

Rock soap
(Min.) a kind of clay having a smooth, greasy feel, and adhering to the tongue.

Rock sparrow
a -	(Zool.) Any one of several species of Old World sparrows of the genus Petronia, as Petronia stulla, of Europe.
b -	A North American sparrow (Pucæa ruficeps).

Rock tar
petroleum.

Rock thrush
(Zool.) any Old World thrush of the genus Monticola, or Petrocossyphus; as, the European rock thrush (Monticola saxatilis), and the blue rock thrush of India (Monticola cyaneus), in which the male is blue throughout.

Rock tripe
(Bot.) a kind of lichen (Umbilicaria Dillenii) growing on rocks in the northen parts of America, and forming broad, flat, coriaceous, dark fuscous or blackish expansions. It has been used as food in cases of extremity.

Rock trout
(Zool.) any one of several species of marine food fishes of the genus Hexagrammus, family Chiradæ, native of the North Pacific coasts; - called also sea trout, boregat, bodieron, and starling.

Rock warbler
(Zool.) a small Australian singing bird (Origma rubricata) which frequents rocky ravines and water courses; - called also cataract bird.

Rock wren
(Zool.) any one of several species of wrens of the genus Salpinctes, native of the arid plains of Lower California and Mexico.

v. t.

To cause to sway backward and forward, as a body resting on a support beneath; as, to rock a cradle or chair; to cause to vibrate; to cause to reel or totter.

[imp. & p. p. Rocked ;p. pr. & vb. n. Rocking.]

A rising earthquake rocked the ground.

- Dryden.

To move as in a cradle; hence, to put to sleep by rocking; to still; to quiet.

v. i.

To move or be moved backward and forward; to be violently agitated; to reel; to totter.

The rocking town
Supplants their footsteps.

- J. Philips .

To roll or saway backward and forward upon a support; as, to rock in a rocking-chair.

Noun	1.	rock - a lump or mass of hard consolidated mineral matter; "he threw a rock at me" Synonyms: stone
	2.	rock - material consisting of the aggregate of minerals like those making up the Earth's crust; "that mountain is solid rock"; "stone is abundant in New England and there are many quarries" Synonyms: stone
	3.	Rock - United States gynecologist and devout Catholic who conducted the first clinical trials of the oral contraceptive pill (1890-1984) Synonyms: John Rock
	4.	rock - (figurative) someone who is strong and stable and dependable; "he was her rock during the crisis"; "Thou art Peter, and upon this rock I will build my church"--Gospel According to Matthew
	5.	rock - hard stick bright-colored stick candy typically peppermint flavored Synonyms: rock candy
	6.	rock - a genre of popular music originating in the 1950s; a blend of Black rhythm-and-blues with White country-and-western; "rock is a generic term for the range of styles that evolved out of rock'n'roll." Synonyms: rock 'n' roll, rock and roll, rock music, rock'n'roll, rock-and-roll
	7.	rock - pitching dangerously to one side Synonyms: careen, sway, tilt
Verb	1.	rock - move back and forth or sideways; "the ship was rocking"; "the tall building swayed"; "She rocked back and forth on her feet" Synonyms: sway, shake
	2.	rock - cause to move back and forth; "rock the cradle"; "rock the baby"; "the wind swayed the trees gently" Synonyms: sway

Rocking or swinging symbolize relaxation, the comforts of the cradle, or the carefree life of childhood. This image may represent the wish of the dreamer to return to the idyllic existence of childhood, perhaps as an escape from present difficulties. The rocking of a chair or cradle can also signify life's ups and downs..Gibraltar, Irish confetti, acid rock, adamant, adamantine, affect, agitate, amaze, appease, astonish, astound, avant-garde jazz, ballroom music, bankrupt, bebop, bedrock, blunder, bob, bobble, bola, bolt, bone, boogie-woogie, boomerang, bop, brick, brickbat, broken-down, calm, calm down, careen, career, cement, champion, coggle, come home to, compose, concert, concrete, cool, countermissile, country rock, cradle, crag, dance music, dances, dangle, daze, defender, destitute, destroyed, diamond, discombobulate, discompose, disconcert, disquiet, disturb, dramatico-musical, dulcify, dumbfound, ease, electrify, escarpment, even out, falter, finished, flint, flintlike, flinty, flounce, flounder, fluctuate, flurry, fluster, flutter, folk rock, foundation, fuss, gentle, granitelike, granitic, hard rock, heart of oak, heave, hit, hit the mark, hobbyhorse, horse, hot jazz, hush, impress, impress forcibly, in ruins, indigent, instrumental, iron, jar, jazz, jazzy, jive, jolt, labor, librate, lion, lithic, lull, lurch, mainstream jazz, make an impression, make heavy weather, marble, marblelike, missile, mollify, musical suite, nails, nutate, oak, on ice, on the rocks, orchestral, oscillate, outcrop, outcropping, overwhelm, ox, pacify, patron, patroness, pendulate, penniless, perturb, petrified, petrogenic, pillar, pitch, pitch and plunge, pitch and toss, plunge, pound, pour balm into, poverty-stricken, projectile, protector, protectress, quell, quiet, rag, ragtime, rattle, rear, reel, resonate, rest, rhythm-and-blues, rock to sleep, rock-and-roll, rocket, ruffle, ruined, safekeeper, scarp, scend, seethe, shake, shake up, shock, sink in, slaty, smite, smooth, smooth down, smooth over, smoothen, soothe, stabilize, stagger, steady, steel, still, stir, strike, strike hard, strike home, struggle, stumble, stun, stupefy, subdue, suite, suite of dances, surprise, swag, swing, swinging, symphonic, syncopated, syncopated music, syncopation, tell, the new music, thrash about, throw, throw stick, throwing-stick, tor, torpedo, toss, toss and tumble, toss and turn, totter, tower, tower of strength, tranquilize, traumatize, trouble, tumble, unnerve, unsettle, upset, vacillate, vibrate, volutation, waddy, wag, waggle, wallop, wallow, wave, waver, welter, wobble, yaw

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