Plural of carbora; multiple instances of resinous, hardened, or carbonized substances.
Plural form of carbora. The singularity and plural formation suggest this is likely a historical or technical term that has largely fallen out of use in modern chemistry.
Like carbora, carboras is a word that's almost lost to history, making it a linguistic rarity. Tracking such forgotten terms helps etymologists understand how different languages and cultures once categorized materials before modern chemistry standardized terminology.
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