2 definitions found From WordNet (r) 2.0 [wn]: monazite noun: a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium From The Collaborative International Dictionary of English v.0.44 [gcide]: Monazite \Mon"a*zite\ (m[o^]n"[.a]*z[imac]t), noun [From Gr. mona'zein to be solitary, in allusion to its isolated crystals.] (Min.) A mineral occurring usually in small isolated crystals, -- a phosphate of the cerium metals.

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