didymium

[ dahy-dim-ee-uh m, di- ]
/ daɪˈdɪm i əm, dɪ- /

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

didrikson, didst, didy, didymalgia, didymitis, didymium, didymous, didymus, didynamous, die, die away
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for didymium

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