In the reports, one clinician noted no differences that were not negligible. The Propaganda for Reform in Proprietary Medicines, Vol. 1 of 2 Various The entire subject of adenomyoma is dealt with from the standpoint of the pathologist, the clinician, and the surgeon.
focal point - a point of convergence of light (or other radiation) or a point from which it diverges. focus. point - the precise location of something; a spatially limited location; she walked to a point where she could survey the whole street.
The focal length of a lens is the distance from the center of the lens to the point at which it focuses light rays. The shorter the focal length, the more powerful the lens. (It's easy to see why: an ordinary piece of glass would be like a lens of infinite focal length and wouldn't bring light rays to a focus at all.