The story
- Latin · derived fromcaesius“sky-blue”
- English todaycaesium
From Latin caesius (“sky-blue”), in reference to the radiation spectra, + -ium.
Words from the same roots
Latincaesius all →
caesious
Etymology from Wiktionary, CC BY-SA 4.0.
caesium
Today it means: The chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal. Full definition →
Latin caesius