Dictionary![]() ![]() Hal•lerPronunciation: ( Ger. hä'lur), [key] —n. Al•brecht von Pronunciation: ( Ger. äl'brekht fun), [key] 1708–77, Swiss physiologist, botanist, and writer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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