|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.|
purblind pur·blind (pûr'blīnd')
Having poor vision; nearly or partly blind.
Slow in understanding or discernment; dull.