Dictionary![]() ![]() Wal•lachPronunciation: (wol'uk; Ger. väl'äkh), [key] —n. Ot•to Pronunciation: (ot'ō; Ger. ôt'ō), [key] 1847–1931, German chemist: Nobel prize 1910. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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