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urrhodinic acid
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English
edit
Noun
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urrhodinic
acid
(
uncountable
)
(
organic chemistry
,
obsolete
)
A supposed
acid
sometimes found in
human
urine
that darkens on exposure to
alkali
; later determined to be a mixture of substances.
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English lemmas
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English uncountable nouns
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en:Organic compounds
English terms with obsolete senses