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Congo red
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English
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English
Wikipedia
has an article on:
Congo red
Wikipedia
Noun
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Congo
red
(
countable
and
uncountable
,
plural
Congo reds
)
A
dye
that turns red in
alkaline
, blue in
acidic
solutions
.
See also
edit
Congo dye
Congo group
Categories
:
English lemmas
English nouns
English uncountable nouns
English countable nouns
English multiword terms
en:Dyes
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