One of the mysteries of the English language finally explained.
A soft, crumbly, porous sedimentary deposit formed from the fossil remains of diatoms.
- ‘Diatoms have an extensive fossil record going back to the Cretaceous; some rocks are formed almost entirely of fossil diatoms, and are known as diatomite or diatomaceous earth.’
- ‘Depth filtration, usually with a particularly porous form of silica called diatomaceous earth forming the layer through which the cloudy wine is passed, is commonly used for this early rough filtration.’
- ‘The richest sources of diatom fossils are deposits of their skeletons known as diatomite, or diatomaceous earth.’
- ‘Also, vacuuming and using diatomaceous earth (the sandlike remains of ancient marine organisms) are natural ways of helping to control fleas in the environment.’
- ‘As the diatoms die, they sink to the ocean floor, becoming a thick ooze of decomposing matter, and eventually giving rise to deposits of the sediment called diatomaceous earth.’
Top tips for CV writingRead more
In this article we explore how to impress employers with a spot-on CV.