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.
Recent Examples of calcium from the Web
Since magnesium deficiency can contribute to exhaustion, I’m supposed to pop a calcium/magnesium supplement every day in addition to a fish oil supplement.
Also in the nutrition column, the Army has found that eating a calcium-rich performance nutrition bar at bedtime protects recruits against the rigors of training.
These microscopic algae build their own armor by surrounding themselves with dozens of limestone, or calcium carbonate, scales.
An early ultrasound of the baby’s brain showed extensive calcium deposits, more signs of Zika damage, doctors said.
The calcium carbonate collects on adjacent surfaces.
Both are sources of high-quality protein, calcium and many vitamins and minerals.
The layers of sedimentary clay store a high concentration of over 21 minerals like calcium, magnesium, potassium, sulfates, and bromide. 2.
Medications included calcium channel blockers, beta blockers, angiotensin receptor blockers (ARBs), angiotensin-converting enzyme (ACE) inhibitors and thiazide diuretics (TZs).
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'calcium'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of calcium
New Latin, from Latin calc-, calx lime
First Known Use: 1808See Words from the same year
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
What made you want to look up calcium? Please tell us where you read or heard it (including the quote, if possible).