• WordNet 3.6
    • n acuity a quick and penetrating intelligence "he argued with great acuteness","I admired the keenness of his mind"
    • n acuity sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
    • ***
Webster's Revised Unabridged Dictionary
    • n Acuity Sharpness or acuteness, as of a needle, wit, etc.
    • ***
Century Dictionary and Cyclopedia
    • n acuity Sharpness; acuteness.
    • ***


Webster's Revised Unabridged Dictionary
LL. acuitas,: cf. F. acuité,


In literature:

Acuity of hearing can be tested by finding the distance at which the various members of the class can hear a watch-tick.
"The Science of Human Nature" by William Henry Pyle
Mental acuity of this grade combined with amnesia looks more like an hysterical than a manic-depressive process.
"Benign Stupors" by August Hoch
Now, the construction of the horse's eye, as described above, is not favorable for the perception of objects (so-called acuity of vision).
"Clever Hans" by Oskar Pfungst
His clinical acuity is further exemplified by his recognition of the relation between cretinism and endemic goitre.
"The Century of Columbus" by James J. Walsh
In full acuity of vision even high degrees of hypermetropia are no trouble to children.
"Schweigger on Squint" by C. Schweigger
The doctor must correct, as far as possible, the want of acuity noticed.
"Mentally Defective Children" by Alfred Binet
The word 'hyperaesthesia' is used to denote an excessive acuity of our senses.
"Spiritualism and the New Psychology" by Millais Culpin

In news:

Visual Acuity , a media and technology consultancy based in the UK with extensive operations in the US, announced the addition of Duncan Howie as a lead consultant.
Howie will work from Visual Acuity 's headquarters in Brighton, U.K.
As the company becomes engaged in more projects around the world, independent media and communications technology consultancy Visual Acuity has made a key new appointment to strengthen its technical system design resource.
Actually , It is Easy Being Green: Apollo Design Technology and Visual Acuity.
Acuity — ak-YOU -ih-TEE — sharpness, keenness of thought, vision.
'The broker's acuity prompts an awkward question.
New LED Architectural Lighting From Acuity Brands.
Acuity Brands Adds New AL Series Luminaires from Lithonia Lighting To Its Portfolio of Innovative LED Architectural Lighting.
SMEDLEY, Bertha Mae (Geary), 92, of Follansbee, WV, passed away on Tuesday, Nov 20, 2012, at Acuity Specialty Hospital, Steubenville, OH.
SMEDLEY, Bertha Mae (Geary), 92, of Follansbee, WV, passed away on Tuesday, November 20, 2012, at Acuity Specialty Hospital, Steubenville, Ohio.
HILEMAN, Clarence Wilbur, 86, of Follansbee, WV, passed away October 30, 2012, in Acuity Specialty Hospital Steubenville, OH.
Acuity 4Q results fall short of Wall Street's view.
Acuity Brands Lighting announced that lighting designer Martin Kinnane will headline the October 2-4, 2005, " Festival of Lights " sponsored by the company.
ATLANTA — Acuity Brands Inc has developed a leap-forward financial tool that allows users to determine the true economic value of a lighting system, according to a press release.
Acuity Brands Inc has introduced its WSD NGX (neutral/ground exchangeable) wall switch sensor as an addition to its Sensor Switch line of occupancy sensors .