Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: atomic number 10
  1. A colourless odourless gaseous element that gives a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts
    - neon, Ne

Type of: argonon, inert gas, noble gas

Part of: air

Encyclopedia: Atomic number 10