One of the mysteries of the English language finally explained.
The chemical element of atomic number 59, a soft silvery-white metal of the lanthanide series.
- ‘Didymium itself, meanwhile, was revealed as a phantom, a mixture of two new elements that Karl Auer in Austria discovered in 1885 and called neodymium (new didymium) and praseodymium (green didymium).’
- ‘They aimed beams of heavy ions at targets of selected elements to produce nuclei with 75 neutrons and 55, 57, 59, and 61 protons (cesium, lanthanum, praseodymium, and promethium) in a wide variety of spin states.’
- ‘I have elements in there that I've never even contemplated using before - stuff like indium, tantalum, ytterbium, and praseodymium.’
- ‘Protective effects of phytosomal silybin were observed using rats pre-exposed to toxins such as praseodymium, galactosamine, and the mushroom poisons phalloidin and alpha-amanitin.’
- ‘One of the oldest uses for praseodymium is in the manufacture of misch metal, a pyrophoric metal (a metal that gives sparks when struck) used to make lighter flints and tracer bullets.’
Late 19th century: modern Latin, from German Praseodym, from Greek prasios ‘leek-green’ (because of its green salts) + German Didym ‘didymium’.
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