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Meaning of thionine | Babel Free

Noun CEFR B2

Definitions

An artificial red or violet dyestuff consisting of a complex sulfur derivative of certain aromatic diamines.
countable, uncountable
The unsaturated nine-membered heterocycle having eight carbon atoms, one sulfur atom and four double bonds.
countable, uncountable

Equivalents

Français thionine

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

thionite thionitrobenzene thionitrobenzoate thionitrobenzoic acid thionitronium thionitrosonium