The masters think a slave who chooses to work during his time off doesn't deserve the time off, and a slave who doesn't work to save enough throughout the year to buy whiskey for the holidays is considered lazy.
An adjuvant is a substance added to some vaccines to enhance the immune response of vaccinated individuals. The aluminum salts in some U.S. licensed vaccines are aluminum hydroxide, aluminum phosphate, alum (potassium aluminum sulfate), or mixed aluminum salts.
3. a nonspecific stimulator of the immune response. aluminum adjuvant an aluminum-containing compound, such as aluminum hydroxide or alum, that by combining with soluble antigen forms a precipitate; slow release of the antigen from the precipitate on injection causes prolonged, strong antibody response.