Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A substance forming the cell walls of many bacteria, consisting of glycosaminoglycan chains interlinked with short peptides.
- ‘The cell wall, which is relatively porous, consists of many polymer layers of peptidoglycan connected by amino acid bridges.’
- ‘It can attach and bind to cell walls and kill a cell by catalyzing the hydrolysis of cell wall peptidoglycan.’
- ‘For instance, the cell walls of all bacteria contain the chemical peptidoglycan.’
- ‘This coincidence suggests that the D-amino acids originated in peptidoglycan of bacterial cell walls.’
- ‘They retain a ‘cell wall’ of peptidoglycan which ought to dispel any doubts about their bacterial origin.’
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.