Hartline Hart·line (härt'līn'), Haldan Keffer. 1903-1983.
American biophysicist. He shared a 1967 Nobel Prize for research on the physiological and electrical activities of the optic nerve and the eye.
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|