Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
An iron-containing compound of the porphyrin class that forms the nonprotein part of hemoglobin and some other biological molecules.
- ‘The active site or prosthetic group of all the cytochromes is an iron containing porphyrin, or heme.’
- ‘The harvested cell pellet was red, which suggested that the prosthetic group heme was synthesized by the bacterium.’
- ‘The majority of photosensitizers are derivatives of hematoporphyrin, a synthetic porphyrin synthesized from heme.’
- ‘This turnover releases significant amounts of the iron-free portion of heme, porphyrin, which is subsequently degraded.’
- ‘An iron porphyrin, called heme, is the portion of hemoglobin that carries oxygen from the lungs to our body's cells.’
1920s: back-formation from hemoglobin.
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.