eka-protactinium
Unbitrium, an unsynthesized chemical element with atomic number 123Unbitrium (Ubt), an unsynthesized chemical element with atomic number 123.
Meaning
2 senses(uncountable)Unbitrium (Ubt), an unsynthesized chemical element with atomic number 123.
(uncountable)Unquadunium (Uqu), an unsynthesized element with atomic number 141.
Origin
From eka- + protactinium.From eka- + protactinium.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable