acute

/əˈkjuːt/

adj

Brief, quick, short. / High or shrill. / Intense, sensitive, sharp. / Urgent. / (botany) With the sides meeting directly to form an acute angle (at an apex or base).

He had an acute pain in his chest.

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意味（1）

Brief, quick, short.

It was an acute event.

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意味（2）

High or shrill.

an acute accent or tone

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意味（3）

Intense, sensitive, sharp.

She had an acute sense of honour. Eagles have very acute vision.

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意味（4）

Urgent.

His need for medical attention was acute.

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意味（5）

(botany) With the sides meeting directly to form an acute angle (at an apex or base).

204. Eremophila abietina […] Corolla 23–35 mm long, cream or very pale lilac, lobes faintly metallic bluish green or lilac, tube occasionally brownish, prominently purple spotted; outer and inner surfaces glandular-pubescent; lobes acute, lobe of lower lip strongly reflexed.

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意味（6）

(geometry) Of an angle: less than 90 degrees.

The teacher pointed out the acute angle.

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意味（7）

(geometry) Of a triangle: having all three interior angles measuring less than 90 degrees.

an acute triangle

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意味（8）

(linguistics, chiefly historical) Of an accent or tone: generally higher than others.

Let this [the word alalal] be ſpoken as an Engliſh word, with the ſtrong accent on either ſyllable, or, on each, in repeating the word; and, no change of articulation diſturbing the ear, it will be abundantly evident that, with ordinary Engliſh pronunciation, the strengthened syllable has always the acuter tone, or, in muſical phraſe, the higher note.

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