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Sharp at the end; ending in a sharp point; pointed; -- opposed to blunt or obtuse; as, an acute angle; an acute leaf.

Having acute angles; as, an acute-angled triangle, a triangle with every one of its angles less than a right angle.

In an acute manner; sharply; keenly; with nice discrimination.

The quality of being acute or pointed; sharpness; as, the acuteness of an angle.

Very sharp; very violent; as, a peracute fever. [R.] Harvey.

Moderalely acute.

An instrument for measuring the acuteness of the sense of hearing. Itard.

Sharpness or acuteness, as of a needle, wit, etc.

Acute-angled.

Having acute lobes, as some leaves.

An acute fever. [Obs.] "Brenning agues." P. Plowman.

Indisposition; morbid affection of the body; -- not applied ordinarily to acute diseases. "Little ailments." Landsdowne.

ne angle: we 'll to the river there. Shak. A fisher next his trembling angle bears. Pope. Acute angle, one less than a right angle, or less than 90º. -- Adjacent or Contiguous angles, such as have one leg common to both angles. -- Alternate angles. See Alternate. -- Angle bar. (a) (Carp.) An upright bar at the angle…

The dropping of a letter or syllable from the beginning of a word; e. g., cute for acute.

An acute and rugged crest of a mountain range or a subsidiary ridge between two mountain gorges.

Sagacious; acute; subtle; shrewd. The active preacher . . . the argue schoolman. Milman.

Acuteness. Dryden.

from particulars to generals, from modern to ancient times, from one note to another more acute, etc.; as, our inquiries ascend to the remotest antiquity; to ascend to our first progenitor.

An anchor is said to be astay, in heaving it, an acute angle is formed between the cable and the surface of the water.

A borosilicate of alumina, iron, and lime, commonly found in glassy, brown crystals with acute edges.