1
- (of a bad, difficult, or unwelcome situation or phenomenon) present or experienced to a severe or intense degree（不利、困难或讨厌的情况或现象）严重的, 剧烈的：
an acute housing shortage
住房严重不足
the problem is acute and getting worse.
问题严重并在恶化。
1.1
- (of a disease or its symptoms) of short duration but typically severe（疾病, 症状）急性的：
acute appendicitis.
急性阑尾炎。常与CHRONIC相对。
1.2
- denoting or designed for patients with such conditions急性病的; 为急性病人准备的：
an acute ward
急性病病房
acute patients.
急性病病人。
2
- having or showing a perceptive understanding or insight; shrewd有洞察力的; 精明的：
an acute awareness of changing fashions.
对时尚变化的敏锐意识。
2.1
- (of a physical sense or faculty) highly developed; keen（感官, 能力）高度发展的; 灵敏的：
an acute sense of smell.
灵敏的嗅觉。
3
- (of an angle) less than 90°（角）小于90°的, 锐角的。
3.1
- having a sharp end; pointed有尖端的, 尖的。
4
- (of a sound) high; shrill（声音）高的, 尖的。
- short for ACUTE ACCENT.ACUTE ACCENT的简称。
派生词
acutely
adverbacuteness
noun词源
late Middle English (describing a disease or its symptoms)： from Latin acutus, past participle of acuere 'sharpen'， from acus 'needle'.