Roy (Claxton) [klak-stuh n] /ˈklæk stən/ (Show IPA), 1903–92, U.S. country-and-western singer and composer.
sharpness; acuteness; keenness: acuity of vision; acuity of mind. noun keenness or acuteness, esp in vision or thought the capacity of the eye to see fine detail, measured by determining the finest detail that can just be detected n. early 15c., from Middle French acuité (16c.) or directly from Medieval Latin acuitatem (nominative acuitas) “sharpness,” […]
sharpness; acuteness; keenness: acuity of vision; acuity of mind. Contemporary Examples His remarkable memory has lost its acuity, and he tires easily. Nelson Mandela Recovering in South Africa After Brief Hospital Scare Charlene Smith February 26, 2012 The unblinking electronic eye was an extension of his own reflexes and acuity—when the red light went on, […]
Biology. having or being any sharp-pointed structure. having a slender ovipositor or sting, as the hymenopterous insects. pointed; stinging. Historical Examples This is also the case in the aculeate Hymenoptera when the reproductive organs have been 735 destroyed by the parasite Stylops. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 Various The aculeate wasps of […]
Also, acus. the modified ovipositor or sting of certain hymenopterous insects. (def 2). noun a prickle or spine, such as the thorn of a rose a sting or ovipositor