in catalysis
Also contains definition of: extraction process in catalysis
In @A00045-1@ and @E02301-1@ processes, an @A00166@ or @A00152@ species extracts an adsorbed atom or a lattice atom respectively. @A00045-2@ process:

@E02301-2@ process:
PAC, 1976, 46, 71. (Manual of Symbols and Terminology for Physicochemical Quantities and Units - Appendix II. Definitions, Terminology and Symbols in Colloid and Surface Chemistry. Part II: Heterogeneous Catalysis) on page 85 [Terms] [Paper]