| social insurance | |
| —n | |
| social security national insurance See also social assistance government insurance providing coverage for the unemployed, the injured, the old, etc: usually financed by contributions from employers and employees, as well as general government revenue | |
| 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 extraordinary or unusual thing, person, or event; an exceptional example or instance. |