Jaffé reaction
noun
Jaf·fé reaction
| \ yä-ˈfā-, zhä-\
variants:
also Jaffé's reaction \ -ˈfāz- \
Medical Definition of Jaffé reaction
: a reaction between creatinine and picric acid in alkaline solution that results in the formation of a red compound and is used to measure the amount of creatinine (as in creatinuria)