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


Noun: neptunium  nep't(y)oo-nee-um
  1. A radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium
    - Np, atomic number 93

Derived forms: neptuniums

Type of: metal, metallic element

Encyclopedia: Neptunium

Nearest

nephthytis
Nephthytis afzelii
Nepidae
nepotic
nepotism
nepotist
nepotistic
Neptune
Neptunian
Neptunism
neptunium
nerd
nerdish
nerdy
Nereid
Nereus
Nergal
nerita
Nerita peloronta
neritic
neritic zone