Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A pigment whose chemical state depends on its degree of illumination, such as those in the retina of the eye.
- ‘The difference absorption spectroscopy in both living plasmodium and cell homogenate shows that there is a photopigment which converts reversibly between red and far-red types.’
- ‘It could involve retinal photoreceptors, extraretinal photoreceptors in the pineal or elsewhere, photopigments such as cryptochromes within the retina or brain, or it might be mediated through a non-visual pathway.’
- ‘The green and red genes encode photopigments that respond to different, overlapping regions in the middle-to-long wavelength spectrum and are adjacent to each other on the X chromosome.’
- ‘There is no physiological evidence for a third photopigment sensitive to blue wavelengths.’
- ‘Their physiological basis is reasonably well understood; they result from the saturation or bleaching of retinal photopigments under intense or prolonged illumination.’
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.