Mannitan
Man"ni*tan\, n. [Mannite + anhydrite.] (Chem.) A white amorphous or crystalline substance obtained by the partial dehydration of mannite.| 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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