calcium
/ˈkæl.si.əm/
noun
- A soft, silver-white metallic chemical element that is essential for strong bones, teeth, and many body functions.
- Milk and cheese are good sources of calcium for growing children.
- The doctor recommended a calcium supplement to prevent bone loss.
- Calcium is important for healthy bones and proper muscle function.
- A mineral found in soil and water that is important for plant growth.
- Hard water contains dissolved calcium from underground rocks.
- Adding calcium to the soil helps tomatoes grow strong stems.
- Plants need calcium to build cell walls and grow properly.