yttrium

1. n. A rare metallic element of the boron-aluminium group, found in gadolinite and other rare minerals, and extracted as a dark gray powder. Symbol Y. Atomic weight, 89. Source: opted

2. n. a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys Source: wordnet

3. A rare metallic element of the boron-aluminium group, found in gadolinite and other rare minerals, and extracted as a dark gray powder. Symbol Y. Atomic weight, 89. [Written also ittrium.] Note: Associated with yttrium are certain rare elements, as erbium, ytterbium, samarium, etc., which are separated in a pure state with great difficulty. They are studied by means of their spark or phosphorescent spectra. Yttrium is now regarded as probably not a simple element, but as a mixture of several substances. Source: webster

4. A rare metallic element of the boron-aluminium group, found ingadolinite and other rare minerals, and extracted as a dark graypowder. Symbol Y. Atomic weight, 89. [Written also ittrium.] Source: adambom

5. n:100 n. a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys Source: ecdict

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