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didymium

[ dahy-dim-ee-uhm, dih- ]
/ daɪˈdɪm i əm, dɪ- /
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noun Chemistry.
a mixture of neodymium and praseodymium, formerly thought to be an element. Symbol: Di
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Origin of didymium

<New Latin <Greek dídym(os) twin (see didymous) + -ium; so named by Swedish chemist Carl Mosander (1797–1858), who discovered it in 1843, from its close association with lanthanum

Words nearby didymium

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use didymium in a sentence

British Dictionary definitions for didymium

didymium
/ (daɪˈdɪmɪəm, dɪ-) /

noun
a mixture of the metallic rare earths neodymium and praseodymium, once thought to be an element
a mixture of rare earths and their oxides used in colouring glass

Word Origin for didymium

C19: from New Latin, from Greek didumos twin + -ium
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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