WORD BY LETTER : English CROSSWORD SOLVER and others things ...
Words starting with : 
Words ending  with : 
Ledger Nano S - The secure hardware wallet
Find a definition : 
Home

definition of the word helium

by the Wiktionnary

Chemical element
He Previous: hydrogen (H)
Next: lithium (Li)

Modern Latin, from Ancient Greek ἥλιος (sun) (because its presence was first theorised in the sun's atmosphere).

Singular
helium

Plural
countable and uncountable; heliums

helium (countable and uncountable; plural heliums)

  1. (uncountable) A colorless and inert gas, and the second lightest chemical element (symbol He) with an atomic number of 2 and atomic weight of 4.002602.
  2. (countable) A form or sample of the element.


Definition from Wiktionary
Content avaible with GNU Free Documentation License

Powered by php Powered by MySQL Optimized for Firefox