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.
The term âarchitraveâ is used in two different senses in the architecture community. In the original sense, an architrave is part of the entablature used on the exterior of a structure as a decorative element. In the modern sense, architraves are the molding which surrounds doors and windows on the inside.hen talking about interior architraves, people are discussing the molding used to surround doors, windows, and other openings. Also known as casing, architraves are used to add visual interest and to soften the edges of an opening. They are used in a variety of architectural styles, and can vary in complexity.