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Meaning of cachou de Laval | Babel Free

Noun CEFR C1

Definitions

A forerunner of sulfur dyes, prepared by treating products with lignin (like sawdust or straw) with sulfide sources (like sodium hydroxide or sulfide mixed with sulfur).

historical, uncountable

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.
See all C1 English words →

See also

cachua cachucha cachupa Cacica cacicazgo cacik

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