Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
[mass noun] The tissue which forms a single layer of cells lining various organs and cavities of the body, especially the blood vessels, heart, and lymphatic vessels. It is formed from the embryonic mesoderm.Compare with epithelium
- ‘The endothelium is a layer of cells that line the undersurface of the cornea and are essential to keeping the cornea clear.’
- ‘This endothelium helps give vessels the elasticity needed to regulate blood pressure.’
- ‘The pulmonary endothelium represents a very large surface area, the major part of which lies in close contact with the alveoli.’
- ‘Laughter appears to cause the tissue that forms the inner lining of blood vessels, the endothelium, to dilate or expand in order to increase blood flow.’
- ‘Blood vessels only work when both endothelia and vascular smooth muscle are bound together.’
Late 19th century: modern Latin, from endo- ‘within’ + Greek thēlē nipple.
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.