| 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 fool or simpleton; ninny. |
Haller Hal·ler (hä'lər), Albrecht von. 1708-1777.
Swiss physiologist whose investigations into the structure of nerves and the relationship of nerves to muscles form the basis of modern neurology. Haller also discovered the role of bile in digesting fats and developed a botanical taxonomic system.