Phys. [L. luxus excess.] A normal excess of proteid material supposed to exist in the blood. Only attrib. (see quots.).
1873. Ralfe, Phys. Chem., 78. The excess of the nitrogenous food taken into the system, but not employed, being at once oxidized and converted into urea: this view of its formation is known as the luxus consumption theory.
1898. Allbutts Syst. Med., V. 911. Persistent high pressure due to luxus-consumption.