Dictionary
Gramatyka angielska
Word: Cerium
ID Word Wordtype Definition 25026 Cerium n. A rare metallic element, occurring in the minerals cerite, allanite, monazite, etc. Symbol Ce. Atomic weight 141.5. It resembles iron in color and luster, but is soft, and both malleable and ductile. It tarnishes readily in the air.
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