Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A red-brown azo dye which becomes blue in acidic conditions, used as a chemical indicator and as a stain in histology.
- ‘The presence of amyloid confirmed histologically by either Congo red or sulfonated Alcian blue stains or by electron microscopy was seen in 8 muscles.’
- ‘Potassium permanganate incubation caused loss of reactivity with Congo red.’
- ‘The chemicals used in making Congo red and the other aniline dyes were primarily derived from the coal-tar waste products of the coal gas and steel industries in Germany's Ruhr Valley.’
- ‘All eyes studied that had characteristics of amyloid accumulation by hematoxylin-eosin staining were also stained with Congo red.’
- ‘The term amyloid refers to proteinaceous, eosinophilic, amorphous material that when stained with Congo red produces a characteristic green birefringence under polarized light.’
We take a look at several popular, though confusing, punctuation marks.
From Afghanistan to Zimbabwe, discover surprising and intriguing language facts from around the globe.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.