trithorium
Three thorium atoms or cations in a moleculeThree thorium atoms or cations in a molecule (Th₃)
Meaning
1 senses(in compounds, uncountable)Three thorium atoms or cations in a molecule (Th₃)
Origin
From tri- + thorium.From tri- + thorium.
Wiktionary, CC BY-SA 4.0 · source
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable