|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 scrap or morsel of food left at a meal.|
|procambium (prō-kām'bē-əm) Pronunciation Key
The primary meristem in vascular plants that gives rise to primary vascular tissues (phloem and xylem).