Congo red
noun
Con·go red ˈkäŋ-(ˌ)gō- 
: an azo dye C32H22N6Na2O6S2 that is red in alkaline and blue in acid solution and that is used especially as an indicator and as a biological stain
Word History
Etymology
Congo, territory in Africa
First Known Use
1885, in the meaning defined above
Medical Definition
Congo red
noun
ˌkäŋ-(ˌ)gō-ˈred
: an azo dye C32H22N6Na2O6S2 that is red in alkaline and blue in acid solution and that is used in a number of diagnostic tests and especially for the detection of amyloidosis since the injected dye tends to be retained by abnormal amyloid deposits
- introspectionistic
- introspectionists
- introspections
- introspective
- introspectively
- introspectiveness
- introspectivenesses
- introspects
- introsusception
- beat (into)
- beat (someone) to the punch
- beat (up)
- beat a dead horse
- beat a hasty retreat
- beat a path
- beat a path to your door
- beat a retreat
- beat about
- beat about the bush
- beat around the bush
- beat back
- beat board
- beat down
- beat in
- beat into