calcium
UK/'kælsiәm/US
IELTSTOEFLGREB1
Definitions
n.
A soft silvery-white metallic element (symbol Ca), essential for bones, teeth, and found in limestone.
钙（化学元素，符号 Ca），骨骼和牙齿所必需，存在于石灰石中。
Root Breakdown
Root-derivedcalc (lime/limestone, from Latin calx) + -ium (chemical element suffix) = the element of lime. Unlike its cousins, calcium keeps the mineral side of calx (the stone) rather than the counting side (the reckoning pebble).
Root calc still carries 6 more wordsCommon Collocations
- 1.calcium supplement钙补充剂
- 2.calcium intake钙摄入量
- 3.calcium deficiency缺钙
- 4.high in calcium富含钙
Example Sentences
- 1.
Milk and cheese are good sources of calcium.
- 2.
A lack of calcium can weaken your bones.
- 3.
Hard water contains a lot of dissolved calcium.