Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
Any of a class of pigments (including haem and chlorophyll) whose molecules contain a flat ring of four linked heterocyclic groups, sometimes with a central metal atom.
- ‘These observations suggest that the generation of 102 by lipophilic porphyrins occurs within the bilayer, which is also the site of damage.’
- ‘The researchers used a nanoparticulate semiconductor electrode coated with a light-sensitive porphyrin or chlorophyll dye.’
- ‘It should also be noted that the doming deformation in the NSD context does not involve the iron, but only the 24 atoms of the porphyrin ring.’
- ‘The NSD method has been used extensively to describe and analyze the out-of-plane distortions of porphyrins in heme proteins.’
- ‘In this work a systematic study of the photophysical properties of four cationic porphyrins in liposomes is performed and results are compared with those found in homogeneous media.’
- ‘Changes in apoprotein and porphyrin fluorescence suggest two classes of bound porphyrins.’
Early 20th century: from Greek porphura purple + -in.
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.