|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 chattering or flighty, light-headed person.|
dissimulation dis·sim·u·la·tion (dĭ-sĭm'yə-lā'shən)
Concealment of the truth about a situation, especially about a state of health, as by a malingerer.