| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| Frederick William | |
| —n | |
| called the Great Elector. 1620--88, elector of Brandenburg (1640--88) | |
| Frederick William I | |
| —n | |
| 1688--1740, king of Prussia (1713--40); son of Frederick I: reformed the Prussian army | |
| Frederick William II | |
| —n | |
| 1744--97, king of Prussia (1786--97) | |
| Frederick William III | |
| —n | |
| 1770--1840, king of Prussia (1797--1840) | |
| Frederick William IV | |
| —n | |
| 1795--1861, king of Prussia (1840--61). He submitted to the 1848 Revolution but refused the imperial crown offered by the Frankfurt Parliament (1849). In 1857 he became insane and his brother, William I, became regent (1858--61) | |