Word: acute Part of Speech: adj Etymology: From Late Middle English acute (“of a disease or fever: starting suddenly and lasting for a short time; of a humour: irritating, sharp”), from Latin acūta, from acūtus (“sharp, sharpened”), perfect passive participle of acuō (“to make pointed, sharpen, whet”), from acus (“needle, pin”). The word is cognate to ague (“acute, intermittent fever”). As regards the noun, which is derived from the verb, compare Middle English acūte (“severe but short-lived fever; of blood: corrosiveness, sharpness; musical note of high pitch”). Pronunciation: /əˈkjuːt/, /əˈkjut/ 1. Brief, quick, short. Example: It was an acute event. Example: Surprisingly, this analysis revealed that acute exposure to solvent vapors at concentrations below those associated with long-term effects appears to increase the risk of a fatal automobile accident. Furthermore, this increase in risk is comparable to the risk of death from leukemia after long-term exposure to benzene, another solvent, which has the well-known property of causing this type of cancer. 2. High or shrill. Example: an acute accent or tone Example: The nimble Fly's Wings quicker were / Than those of her Competitor [a bee], / As may by this appear; / For an acuter Tone they made, / And in a ſharper Key they play'd, / (Which made the matter clear.) 3. Intense; sensitive; sharp. Example: She had an acute sense of honour Example: Eagles have very acute vision. 4. Urgent. Example: His need for medical attention was acute. Example: […] Ahab rapidly ordered the ship's course to be slightly altered, and the sail to be shortened. The acute policy dictating these movements was sufficiently vindicated at daybreak, by the sight of a long sleek on the sea directly and lengthwise ahead, smooth as oil, and resembling in the pleated watery wrinkles bordering it, the polished metallic-like marks of some swift tide-rip, at the mouth of a deep, rapid stream. 5. With the sides meeting directly to form an acute angle (at an apex or base). Example: 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. 6. Less than 90 degrees. Example: The teacher pointed out the acute angle. Example: Chlorophosphuret of nitrogen (at ordinary temperatures) is a solid crystalline body. […] The form of the crystals, as obtained by sublimation, is that of a rhomboid, of which the obtuse angle measures 131° or 132°, the acute 48° or 49°: the acute angle of this rhomboid, either at one or both ends, is often truncated, when of course the angle formed is about 114°: the hexagonal prism is also found. 7. Having all three interior angles measuring less than 90 degrees. Example: an acute triangle Example: In order to be an acute triangle, all three angles of a triangle must be less than 90°. These triangles can have very prickly personalities. So, if you want to create images of porcupines, rugged mountains, or narrow pine trees in your geometric design, you may best do it by using acute triangles[…]. The most commonly used acute triangle in quiltmaking is the equilateral triangle[…]. All three of its angles are 60°. 8. Of an accent or tone: generally higher than others. Labels: historical Example: 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. 9. Sharp, produced in the front of the mouth. (See Grave and acute on Wikipedia.Wikipedia ) Labels: dated 10. Of an abnormal condition of recent or sudden onset, in contrast to delayed onset; this sense does not imply severity, unlike the common usage. Example: He dropped dead of an acute illness. Example: Of particular relevance to the ICU [intensive care unit] setting is ketorolac, a NSAID [non-steroidal anti-inflammatory drug] that is being increasingly used for pain control in order to avoid problems of respiratory depression, sedation, and addiction associated with narcotics. […] ICU patients, who typically are under great stress from an acute illness that is often accompanied by multiorgan dysfunction including renal insufficiency, are especially prone to develop renal complications from ketorolac[…]. 11. Of a short-lived condition, in contrast to a chronic condition; this sense also does not imply severity. Example: The acute symptoms resolved promptly. Example: Bats host many high-profile viruses that can infect humans, including severe acute respiratory syndrome and Ebola. A recent study explored the ecological variables that may contribute to bats’ propensity to harbor such zoonotic diseases by comparing them with another order of common reservoir hosts: rodents. 12. Of a letter of the alphabet, having an acute accent. Labels: postpositional Example: The last letter of ‘café’ is ‘e’ acute. Example: A more conservative approach, particularly if your author is a skilled computer user, would be to replace the problem characters with simple words or codes that are guaranteed to transfer successfully between computers. For example, you could replace é with e-acute if that particular character is causing problems. […] The author could then do a search and replace to change all instances of e-acute back to é before publication.