Search the Dictionary

A white concretionary form of calcium carbonate, usually hard and semicrystalline. It is deposited from the water of springs or streams holding lime in solution. Extensive deposits exist at Tivoli, near Rome.

he blushing flowers shall rise. Pope. Fools rush in where angels fear to tread. Pope. The hard stone Under our feet, on which we tread and go. Chaucer.

To exert strength; to endeavor; to make an effort or an attempt; as, you must try hard if you wish to learn.

er; especially, the deposit which accompanies scrofula or phthisis. This is composed of a hard, grayish, or yellowish, translucent or opaque matter, which gradually softens, and excites suppuration in its vicinity. It is most frequently found in the lungs, causing consumption. Tubercle bacillus (Med.), a minute vegetab…

inerals, as wolfram and scheelite, and isolated as a heavy steel-gray metal which is very hard and infusible. It has both acid and basic properties. When alloyed in small quantities with steel, it greatly increases its hardness. Symbol W (Wolframium). Atomic weight, 183.6. Specific gravity, 18.

A steel containing a small amount of tungsten, noted for tenacity and hardness, even under a considerable degree of heat. Magnets made of it are said to be highly permanent. It often contains manganese.

öl.) See Girdler, 3. -- Twig rush (Bot.), any rushlike plant of the genus Cladium having hard, and sometimes prickly-edged, leaves or stalks. See Saw grass, under Saw.

justice, or cruel punishment, or the demand of unreasonable services, imposes burdens and hardships on those under his control, which law and humanity do not authorize, or which the purposes of government do not require; a cruel master; an oppressor. "This false tyrant, this Nero." Chaucer. Love, to a yielding heart, i…

Having no hard and sharp projections, as spines, prickles, spurs, claws, etc.

uncertain person; an uncertain breeze. O woman! in our hours of ease, Uncertain, coy, and hard to please! Sir W. Scott.

Not easy; difficult; hard. [Obs.] Who he was, uneath was to descry. Spenser.

Without kind feelings; cruel; hard-hearted. To each his sufferings: all are men, Condemned alike to groan; The tender for another's pain, Th' unfeeling for his own. Gray. -- Un*feel"ing*ly, adv. -- Un*feel"ing*ness, n.

Not relenting; unyielding; rigid; hard; stern; cruel. -- Un`re*lent"ing*ly, adv. -- Un`re*lent"ing*ness, n.

Not soft; hard; coarse; rough. [Obs.] "Bristles of his beard unsoft." Chaucer.

or position; above; -- the opposite of Ant: down. But up or down, By center or eccentric, hard to tell. Milton.

and quarters of shoes. -- Upper strake (Naut.), the strake next to the deck, usually of hard wood, and heavier than the other strakes. -- Upper ten thousand, or (abbreviated) Upper ten, the ten thousand, more or less, who are highest in position or wealth; the upper class; the aristocracy. [Colloq.] -- Upper topsail…

p, found in certain rare minerals, as pitchblende, uranite, etc., and reduced as a heavy, hard, nickel-white metal which is quite permanent. Its yellow oxide is used to impart to glass a delicate greenish-yellow tint which is accompanied by a strong fluorescence, and its black oxide is used as a pigment in porcelain pa…

The plastic operation for closing a fissure in the hard palate.

To press hard upon; to follow closely Heir urges heir, like wave impelling wave. Pope.

pears to have still existed in the time of Julius Cæsar. It had very large horns, and was hardly capable of domestication. Called also, ur, ure, and tur.