jeffersonite
A zinc-containing variety of pyroxene of olive-green color passing into brownA zinc-containing variety of pyroxene of olive-green color passing into brown.
Meaning
1 senses(uncountable)A zinc-containing variety of pyroxene of olive-green color passing into brown.
Origin
From Jefferson + -ite, after Thomas Jefferson.From Jefferson + -ite, after Thomas Jefferson.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable