, is the casting or shooting forth of rays of light as from a centre.—Every visible body is a radiating body; it being only by means of its rays that it affects the eye.—The surface of a radiating or visible body, may be conceived as consisting of radiant points.
RADICAL Sign, in Algebra, the sign or character denoting the root of a quantity; and is this √. So √2 is the square root of 2, and √32 is the cube root of <*>, &c.
· 
· 
ABCDEFGHKLMNOPQRSTWXYZABCEGLMN
Entry taken from A Mathematical and Philosophical Dictionary, by Charles Hutton, 1796.
This text has been generated using commercial OCR software, and there are still many problems; it is slowly getting better over time. Please don't reuse the content (e.g. do not post to wikipedia) without asking liam at holoweb dot net first (mention the colour of your socks in the mail), because I am still working on fixing errors. Thanks!