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Definition of Raney nickel
1. Noun. A finely divided nickel-aluminum alloy that has been treated with NaOH to dissolve out most of the aluminum. ¹
¹ Source: wiktionary.com
Medical Definition of Raney nickel
1. Proprietary name for a finely powdered nickel catalyst made from Raney alloy by dissolving out the aluminum with alkali; used in the hydrogenation of organic substances. Synonym: Raney catalyst. (05 Mar 2000)