Word:

Didymium

Di`dym´i`um
n.1.(Chem.) A rare metallic substance usually associated with the metal cerium; - hence its name. It was formerly supposed to be an element, but has since been found to consist of two simpler elementary substances, neodymium and praseodymium. See Neodymium, and Praseodymium.
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Didelphis virginiana
Didelphous
Didelphyc
Didelphys
Diderot
Didine
Didion
Dido
Didonia
Didot point
Didrachm
Didrikson
Didst
Diducement
Diduction
Didym
-- Didymium --
Didymous
Didynamia
Didynamian
Didynamous
Die
die away
die back
die down
die hard
die horribly
die off
die out
die-cast
die-hard
die-sinker
dieback
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