acute /əˈkjut/ 形容詞
1. Sharp at the end; ending in a sharp point; pointed; -- opposed to blunt or obtuse; as, an acute angle; an acute leaf.
2. Having nice discernment; perceiving or using minute distinctions; penetrating; clever; shrewd; -- opposed to dull or stupid; as, an acute observer; acute remarks, or reasoning.
3. Having nice or quick sensibility; susceptible to slight impressions; acting keenly on the senses; sharp; keen; intense; as, a man of acute eyesight, hearing, or feeling; acute pain or pleasure.
4. High, or shrill, in respect to some other sound; -- opposed to grave or low; as, an acute tone or accent.
5. Med. Attended with symptoms of some degree of severity, and coming speedily to a crisis; -- opposed to chronic; as, an acute disease.
Acute angle Geom., an angle less than a right angle.
Syn: -- Subtile; ingenious; sharp; keen; penetrating; sagacious; sharp-witted; shrewd; discerning; discriminating. See Subtile.
A·cute, v. t. To give an acute sound to; as, he acutes his rising inflection too much. [R.]
adj 1: having or experiencing a rapid onset and short but severe
course; "acute appendicitis"; "the acute phase of the
illness"; "acute patients" [ant: chronic]
2: extremely sharp or intense; "acute pain"; "felt acute
annoyance"; "intense itching and burning" [syn: intense]
3: having or demonstrating ability to recognize or draw fine
distinctions; "an acute observer of politics and
politicians"; "incisive comments"; "icy knifelike
reasoning"; "as sharp and incisive as the stroke of a
fang"; "penetrating insight"; "frequent penetrative
observations" [syn: discriminating, incisive, keen,
knifelike, penetrating, penetrative, piercing, sharp]
4: of an angle; less than 90 degrees [ant: obtuse]
5: ending in a sharp point [syn: acuate, sharp, needlelike]
6: of critical importance and consequence; "an acute (or
critical) lack of research funds"
n : a mark (') placed above a vowel to indicate pronunciation
[syn: acute accent, ague]