|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
Dale (dāl), Sir Henry Hallett. 1875-1968.
British physiologist. He shared a 1936 Nobel Prize for work on the chemical transmission of nerve impulses, particularly for the isolation and study of acetylcholine (1914).
|Dale (dāl) Pronunciation Key
British physiologist who discovered acetylcholine and, with Otto Loewi, investigated the chemical transmission of nerve impulses. For this work they shared the 1936 Nobel Prize for physiology or medicine.