Results for V
Definitions of V:
1. Abbreviation for vision or visual acuteness. The acuteness of vision is indicated by a fraction in which the numerator is a number expressing the distance in feet of the observer from the chart ( usually 20 feet), and the denominator a number expressing the distance in feet at which the normal eye would see the smallest letters which the patient sees at the distance at which he is; thus, if at 20 feet he sees only the letters which the normal eye would see at 50 feet, the formula of his vision will be V. = 20/ 50 2. Chemical symbol for vanadium.
Usage examples for V:

This is open to many objections; first, see chap, i, v
"The Bible: what it is", Charles Bradlaugh 
He had meant to find Mary V and tell her what had happened, and say good by.
"The Thunder Bird", B. M. Bower 
Morte d'Arthur, Book V cap.
"Beowulf An Introduction to the Study of the Poem with a Discussion of the Stories of Offa and Finn", R. W. Chambers