neptunium

Noun

a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium
The transuranic chemical element with atomic number 93 and symbol Np.

Origin / Etymology

From Neptune + -ium, after the planet. The previous element is uranium, named after the previous planet: Uranus.

Synonyms

atomic number 93, Np

Scrabble Score: 13

neptunium is a valid Scrabble (US) TWL word
neptunium is a valid Scrabble Word in Merriam-Webster MW Dictionary
neptunium is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 19

neptunium is a valid Words With Friends word