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Pronunciation varies by accent · noun
(chemistry) A dense cluster of nanotubes having a form resembling a sea urchin, especially one made from vanadium oxides..
Use nano-urchin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Nano-urchin means (chemistry) A dense cluster of nanotubes having a form resembling a sea urchin, especially one made from vanadium oxides..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use nano-urchin where its definition matches the intended context.
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