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having or experiencing a rapid onset and short but severe course;
"acute appendicitis"
"the acute phase of the illness"
"acute patients"
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extremely sharp or intense;
"acute pain"
"felt acute annoyance"
"intense itching and burning"
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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"
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of an angle; less than 90 degrees
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ending in a sharp point
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of critical importance and consequence;
"an acute (or critical) lack of research funds"