Prussian blue


Prus·sian blue

noun \ˈprə-shən-\

Definition of PRUSSIAN BLUE

1
:  any of numerous blue iron pigments formerly regarded as ferric ferrocyanide
2
:  a dark blue crystalline hydrated ferric ferrocyanide Fe4[Fe(CN)6]3·xH2O used as a test for ferric iron
3
:  a greenish blue

Origin of PRUSSIAN BLUE

Prussia, Germany
First Known Use: 1724

Prus·sian blue

noun \ˈprəsh-ən-ˈblü\   (Medical Dictionary)

Medical Definition of PRUSSIAN BLUE

1
: any of numerous blue iron pigments formerly regarded as the ferric salt of ferrocyanide
2
: a dark blue crystalline hydrated compound Fe4[Fe(CN)6]3·xH2O that is a ferrocyanide of iron and is used as a test for ferric iron—called also ferric ferrocyanide

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