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optische Aufheller
industr., construct.	fluorescent brightener
optischer Aufheller
gen.	optical brightener
chem.	brightener; fluorescent whitening agent; optical bleach; optical bleaching agent; optical whitening agent; whitening agent; clearing agent (optical brightener); bleaching agent
industr., construct.	optical brightening agent
phys.	optic brightener
textile	fluorescent brightener