| downtick | |
noun | |
| a transaction in the stock market at a price below the price of the preceding transaction [ant: uptick] |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |