DICTIONARY ENTRY
4 SYLLABLES
neptunium
/nɛp'tuniəm/ · nɛptuniəm
Neptunium has 4 syllables: nep · tu · ni · um.
nep
01
tu
02
ni
03
um
04
noun. A radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium.
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