| Main Entry: | population density |
| Part of Speech: | n |
| Definition: | the number of people living per unit of an area (e.g. per square mile); the number of people relative to the space occupied by them |
| 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 screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
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