Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A mobile concentration of energy in a crystal formed by an excited electron and an associated hole.
- ‘As the group intensified optical stimulation during the experiments, though, the number of excitons increased and the electron/electron-hole pairs cancelled each other.’
- ‘The first images of the motion of an exciton - a particle essential to modern electronics - and a biexciton show that the lighter exciton roams farther.’
- ‘Some of these excitons emit light when they decay to the ground state.’
- ‘Implicitly, the more donors, the greater the probability for a photon to become an exciton.’
- ‘The injected electrons and holes combine to form excitons, or electron-hole pairs, bound together by their mutual attraction.’
1930s: from excitation + -on.
Are you looking for a word for a foolish person? We explore twelve interesting words to describe the dunderheads in your life.
Before you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.