calcium

another term kalium potassium${\displaystyle \longleftarrow }$ 20 ${\displaystyle \longrightarrow }$scandium

The Simple English Wikipedia has an article on:

Calcium

Pronunciation

• (US) enPR: kăl′sē-əm, IPA ^(key): /ˈkælsi.əm/

• Audio (US)

  (file)

• Homophones: cal, ci, um

Noun

Singular calcium

Plural none

1. An element with atomic number 20 and symbol Ca. Also a nutrient in many different foods.

   The human body needs calcium in order to stay healthy.

This short entry needs someone to make it better. You can help Wiktionary by adding to it.