Definition for YT'TRI-A

YT'TRI-A, n. [so called from Ytterby, a quarry in Sweden.]

A metallic oxyd. It has the appearance of a fine white powder, without taste or smell. It is insoluble in water, and does not affect vegetable blues. It combines with acids and forms salts. Its metallic base is yttrium. It was discovered in 1794, by Professor Gadolin, in a mineral found at Ytterby. The metal of which it is an oxyd, was first obtained by Woehler, in 1828. – Cyc. Ure. Davy.

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