CALCIUM Definition & Meaning

calcium

[ kal-see-uhm ]

Phonetic (Standard)IPA

noun

Chemistry, Biology.

a silver-white divalent metal, occurring combined in limestone, chalk, gypsum, etc., occurring also in vertebrates and other animals, as a component of bone, skeletal mass, shell, etc., and as a necessary element in nerve conduction, heartbeat, muscle contraction, and many other physiological functions. : Ca; : 40.08; : 20; : 1.55 at 20°C.

calcium

/ ˈ��æ��ɪə�� /

noun

a malleable silvery-white metallic element of the alkaline earth group; the fifth most abundant element in the earth's crust (3.6 per cent), occurring esp as forms of calcium carbonate. It is an essential constituent of bones and teeth and is used as a deoxidizer in steel. Symbol: Ca; atomic no: 20; atomic wt: 40.078; valency: 2; relative density: 1.55; melting pt: 842±2°C; boiling pt: 1494°C

calcium

/ ��ă��′��ŧ-ə�� /

A silvery-white, moderately hard metallic element of the alkaline-earth group that occurs in limestone and gypsum. It is a basic component of leaves, bones, teeth, and shells, and is essential for the normal growth and development of most animals and plants. Calcium is used to make plaster, cement, and alloys. Atomic number 20; atomic weight 40.08; melting point 842 to 848°C; boiling point 1,487°C; specific gravity 1.55; valence 2.
See Periodic Table

Discover More

�y��vlog History and Origins

Origin of calcium¹

First recorded in 1800–10; calc- + -ium

Discover More

�y��vlog History and Origins

Origin of calcium¹

C19: from New Latin, from Latin calx lime

Discover More

Example Sentences

Examples have not been reviewed.

The plant is rich in vitamins, minerals, calcium, iron, fiber, protein and calories; helps stimulate breathing and allows the lungs to absorb more oxygen, which is useful in the highlands of Bolivia.

From

The microbes multiply as they consume the hydrogen, the carbon dioxide, and a few additional nutrients, such as calcium and phosphorous.

From

Areas with a lot of limestone, like the Midwest, have water that is higher in calcium.

From

First, milk is a rich source of calcium, which has been linked previously to a reduced risk of bowel cancer.

From

Women of reproductive age are recommended to take more iron at certain ages, and women, particularly in the postmenopausal period of life, are recommended to take more calcium for bone health.

From

Browse