| open door | |
| —n | |
| 1. | a policy or practice by which a nation grants opportunities for trade to all other nations equally |
| 2. | free and unrestricted admission |
| —adj | |
| 3. | open to all; accessible |
| 4. | (in industrial relations) designating a policy of management being prepared to talk to workers in the office at any time |
| 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 gadget; dingus; thingumbob. |