Word: 
Words and phrases whose definition contains trivalent:  (44 results)
au, bi, co, er, ga, gold, ho, lu
bismuth, boron, cobalt
arsenious, erbium, gallium, glyceryl, holmium, lutetium, scandium
dysprosium, europium, lutecium
gadolinium, neodymium
praseodymium
Commonly used words are shown in bold. Rare words are dimmed.
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