| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
roost (ruːst) ![]() | |
| —n | |
| 1. | a place, perch, branch, etc, where birds, esp domestic fowl, rest or sleep |
| 2. | a temporary place to rest or stay |
| 3. | rule the roost See rule |
| —vb | |
| 4. | (intr) to rest or sleep on a roost |
| 5. | (intr) to settle down or stay |
| 6. | come home to roost to have unfavourable repercussions |
| [Old English hrōst; related to Old Saxon hrost loft, German Rost grid] | |