Sinhala Dictionary definitions for neptunium
neptunium 🔊 /nɛptuˈniʌm/
neptunium : නෙප්චූනියම්
neptunium : නෙප්චූනියම් නම් මූලද්රව්යය
neptunium definition
Noun. A new metallic element, of doubtful genuineness and uncertain indentification, said to exist in certain minerals, as columbite.