The physical environment under which an experiment or procedure in a laboratory is conducted (which may involve a specified, frequently optimized, temperature, pressure, type of apparatus, etc.); frequently as "under laboratory conditions".
Origin
Late 19th century.
Definition of laboratory conditions in US English:
laboratory conditions
noun
The physical environment under which an experiment or procedure in a laboratory is conducted (which may involve a specified, frequently optimized, temperature, pressure, type of apparatus, etc.); frequently as "under laboratory conditions".