UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/æˈkjuːɪti/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/əˈkjuɪti/ ,USA pronunciation: respelling(ə kyo̅o̅i tē)

WordReference Random House Learner's Dictionary of American English © 2020
a•cu•i•ty /əˈkyuɪti/USA pronunciation   n. [uncountable]
  1. sharpness;
    acuteness:visual acuity; mental acuity.
See -acr-.
WordReference Random House Unabridged Dictionary of American English © 2020
a•cu•i•ty  (ə kyo̅o̅i tē),USA pronunciation n. 
  1. sharpness;
    keenness:acuity of vision; acuity of mind.
  • Medieval Latin, Late Latin acuitās, equivalent. to Latin acu(ere) to sharpen or acū(tus) sharpened (see acute) + -itās -ity
  • Old French
  • late Middle English acuite 1375–1425

Collins Concise English Dictionary © HarperCollins Publishers::
acuity /əˈkjuːɪtɪ/ n
  1. keenness or acuteness, esp in vision or thought
Etymology: 15th Century: from Old French, from Latin acūtus acute
'acuity' also found in these entries (note: many are not synonyms or translations):
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