|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.|
asocial a·so·cial (ā-sō'shəl)
Avoiding or averse to the society of others; not sociable.
Unable or unwilling to conform to normal standards of social behavior; antisocial.