Balco routinely tested its clients' blood and urine for levels of various substances.
But he has also been known as a prankster and a self-confessed abuser of various substances.
Lubrication, introduction of any of various substances between sliding surfaces to reduce wear and friction.
Various substances, such as nicotine, arsenic, ergot, and lead, have occasionally been blamed.
Insulator, any of various substances that block or retard the flow of electrical or thermal currents.
A special branch of histology, histochemistry, involves the chemical identification of the various substances in tissues.
After a clothing makeover (the girls are adept shoplifters), there is tongue and body piercing, promiscuous sex and snorting and popping of various substances.
In other words, the baby may indeed be allergic to various substances, but eliminating exposure to them is unlikely to clear up the eczema.
The agency may also work with the Centers for Disease Control and Prevention to add acrylamide to a national health survey that tests people's exposure to various substances.
There are a number of ways in which coordination compounds are used in the analysis of various substances.
Soil bacteria are extremely active in effecting biochemical changes by transforming the various substances, humus and minerals, that characterize soil.
