Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A carboxylic acid, C₁₉H₂₇COOH, obtained from retinol by oxidation and used in ointments to treat acne.
- ‘After applying retinoic acid every day for six months, only a third of users will notice moderate improvement in wrinkles or spotty discoloration.’
- ‘For the research, Stephensen exposed mouse immune-system cells, in petri dishes, to a form of vitamin A known as retinoic acid, along with a protein that mimics an infectious microbe.’
- ‘Because of the known teratogenic side effects of high-dose vitamin A, there is limited application of retinoic acid for women of reproductive age.’
- ‘For the study, 266 long-time smokers who had kicked the habit at least one year previously were randomly assigned to receive two forms of retinoic acid - commonly known as vitamin A - or a placebo.’
- ‘One exception is prescription retinoic acid (found in Renova and Retin-A), which has been shown to improve the appearance of newer, red stretch marks.’
1970s: from retina.
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.