cesium

We have found lemma(root) word of cesium : caesium.

Definitions


[ˈsiːzɪəm], (Noun)

Definitions:
- the chemical element of atomic number 55, a soft, silvery, extremely reactive metal. It belongs to the alkali metal group and occurs as a trace element in some rocks and minerals


Phrases:

Origin:
mid 19th century: from Latin caesius ‘greyish-blue’ (because it has characteristic lines in the blue part of the spectrum)




definition by Oxford Dictionaries