Medical Definition of NITRIFICATION. : the oxidation (as by bacteria) of ammonium salts to nitrites and the further oxidation of nitrites to nitrates.See nitrification defined for kids.ADVERTISEMENT.edical Definition of NITRIFICATION. : the oxidation (as by bacteria) of ammonium salts to nitrites and the further oxidation of nitrites to nitrates.
1. cladding-a protective covering that protects the outside of a building. facing. protective cover, protective covering, protection-a covering that is intend to protect from damage or injury; they had no protection from the fallout; wax provided protection for the floors.
Timber cladding is an environmentally friendly method that is used to clad buildings. Boards or planks of wood are used to form the exterior of a building.Traditionally, timber cladding was synonymous with agricultural buildings such as barns, and used rough cut, untreated planks of wood as the main building material.With the advancement of technology and design, this cladding has evolved into a sophisticated option.onstruction. Cladding is laid in a number of different ways according to the aesthetics required for the building. Boards are orientated vertically, horizontally or diagonally. Thin pieces of wood called battens are fixed to the inner wall as support for the cladding.