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A great fall of water over a precipice; a large waterfall.

Of the nature of a cataract in the eye; affected with cataract.

tate of refraction caused by the absence of the crystalline lens, as after operations for cataract. The remedy is the use of powerful convex lenses. Dunglison.

The incision of a capsule, esp. of that of the crystalline lens, as in a cataract operation.

A fall of water over a precipice, as in a river or brook; a waterfall less than a cataract. The silver brook . . . pours the white cascade. Longjellow. Now murm'ring soft, now roaring in cascade. Cawper.

Broken; uneven. [Obs.] "Confragose cataracts." Evelyn.

To treat by pushing down or displacing the opaque lens with a needle; as, to couch a cataract. To couch a spear or lance, to lower to the position of attack; to place in rest. He stooped his head, and couched his spear, And spurred his steed to full career. Sir W. Scott. To couch malt, to spread malt on a floor. Mortim…

The operation of putting down or displacing the opaque lens in cataract.

A method of operating for cataract; couching. See Couch, v. t.,

f; to eviscerate. Soon after their death, they are disemboweled. Cook. Roaring floods and cataracts that sweep From disemboweled earth the virgin gold. Thomson.

A sudden fall; a body of things falling. Those cataracts or downfalls aforesaid. Holland. Each downfall of a flood the mountains pour. Dryden.

Descent of water; a cascade; a cataract; a rush of water down a precipice or steep; -- usually in the plural, sometimes in the singular; as, the falls of Niagara.

, compar. of Fere, fierce. [Obs.] Rhenus ferier than the cataract. Marston.

A waterspout; a hurricane. [Obs.] Drayton. "You cataracts and hurricanoes, spout." Shak.

pidly; to skirmish. Now hurtling round, advantage for to take. Spenser. Down the hurtling cataract of the ages. R. L. Stevenson.

cumulator for hydraulic machinery of any kind. See Accumulator, 2. -- Hydraulic brake, a cataract. See Cataract, 3. -- Hydraulic cement, a cement or mortar made of hydraulic lime, which will harden under water. -- Hydraulic elevator, a lift operated by the weight or pressure of water. -- Hydraulic jack. See under J…

Cataract.

An instrument for dividing the cornea in operations for cataract.

The operation of removing a cataract by thrusting a needle through the cornea of the eye, and breaking up the opaque mass.

A waterfall, or cataract; as, a roaring lin.