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Pronunciation varies by accent · noun
(mineralogy) A radioactive mineral, a carbonate of the rare earth elements lanthanum, cerium, and neodymium..
Use lanthanite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Lanthanite means (mineralogy) A radioactive mineral, a carbonate of the rare earth elements lanthanum, cerium, and neodymium..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use lanthanite where its definition matches the intended context.
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