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| a gadget; dingus; thingumbob. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| mountain sickness | |
| —n | |
| 1. | Also called: altitude sickness nausea, headache, and shortness of breath caused by climbing to high altitudes (usually above 12 000 ft) |
| 2. | vet science a disease of cattle kept at high altitude in S and N America, characterized by congestive heart failure |
mountain sickness moun·tain sickness (moun'tən)
n.
Altitude sickness brought on by the diminished oxygen pressure at mountain elevations.