Definition of calcium
: a silver-white divalent metallic element of the alkaline-earth group occurring only in combination — see element table
Examples of calcium in a sentence
Her doctor said she should eat more foods that are high in calcium, such as milk and cheese.
Origin and Etymology of calcium
New Latin, from Latin calc-, calx lime
First Known Use: 1808
CALCIUM Defined for English Language Learners
Definition of calcium for English Language Learners
: a substance that is found in most plants and animals and that is especially important in people for strong healthy bones
CALCIUM Defined for Kids
Definition of calcium for Students
: a silvery soft metallic chemical element that is essential for strong healthy bones
Seen and Heard
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