Water Battery :: Water battery () A voltaic battery in which the exciting fluid is water.
Water Battery :: Water battery () A battery nearly on a level with the water.
Widmanstatten Figures :: Widmanstatten figures () Certain figures appearing on etched meteoric iron; -- so called after A. B. Widmanstatten, of Vienna, who first described them in 1808. See the Note and Illust. under Meteorite..