Main Entry: acute
Pronunciation: \ə-ˈkyüt\
Function: adjective
Inflected Form(s): acut·er; acut·est
Etymology: Middle English, from Latin
acutus, past participle of
acuere to sharpen, from
acus needle; akin to Latin
acer sharp — more at
edgeDate: 14th century
1 a (1) : characterized by sharpness or severity
{acute pain} (2) : having a sudden onset, sharp rise, and short course
{acute disease} (3) : being, providing, or requiring short-term medical care (as for serious illness or traumatic injury)
{acute hospitals} {an acute patient} b : lasting a short time
{acute experiments}
2 : ending in a sharp point: as
a : being or forming an angle measuring less than 90 degrees
{an acute angle} b : composed of acute angles
{an acute triangle}
3 a of an accent mark : having the form ´
b : marked with an acute accent
c : of the variety indicated by an acute accent
4 a : marked by keen discernment or intellectual perception especially of subtle distinctions
: penetrating {an acute thinker} b : responsive to slight impressions or stimuli
{acute hearing}
5 : felt, perceived, or experienced intensely
{acute distress}
6 : seriously demanding urgent attention
{an acute emergency} — acute·ly adverb
— acute·ness noun