| overestimate | |
| —vb | |
| 1. | (tr) to value or estimate too highly |
| —n | |
| 2. | an estimate that is too high |
| overesti'mation | |
| —n | |
| 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. |