| Title | acuity |
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| Text |
Merriam-Webster's Collegiate Dictionary acu·ity (plural -ities) ETYMOLOGY Middle English acuite acridity, from Middle French acuité, from Medieval Latin acuitat-, acuitas, from Latin acuere DATE 1543 : keenness of perception : sharpness English Etymology acuity 1540s, from M.Fr . acuité, from M.L. acuitatem (nom. acuitas) "sharpness," from L. acus "needle," acuere "to sharpen," from PIEbase *ak- "rise to a point, be sharp" (see acrid).http://M.Fr Oxford Advanced Learner's Dictionary-牛津双解-OALD7 acuity acu·ity / E5kju:Eti / noun[U] (formal) the ability to think, see or hear clearly (思维、视力、听力的)敏度,敏锐 Webster's Third New International Dictionary, Unabridged acu·i·ty \əˈkyüəd.ē, aˈ-, -ətē, -i\ noun (-es) Etymology: Middle French acuité, alteration (influenced by Latin acutus sharp, pointed) of Old French agüeté, from agu sharp (from Latin acutus) + -eté -ity — more at acute : sharpness , acuteness : keenness of sense perception < acuity of hearing > or acuteness or perceptiveness of mind < Wordsworth's acuity is exercised on common objects — Herbert Read > — see visual acuity |
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