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Pronunciation varies by accent · noun
(biochemistry) A tough elastic protein that is the main component of silk and of spider's webs.
Use fibroin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Fibroin means (biochemistry) A tough elastic protein that is the main component of silk and of spider's webs.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use fibroin where its definition matches the intended context.
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