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 second (posterior) focal length is the distance from the lens (or second principal point) to the second principal focus. Symbol: f .In a spherical mirror the focal length f, i.e. the distance between the focal point and the pole of the mirror, is equal to half its radius of curvature rf = r /2 Syn. focal distance.