| 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). |