adulterant
- n any substance that lessens the purity or effectiveness of a substance
it is necessary to remove the adulterants before use - a making impure or corrupt by adding extraneous materials
- Another dangerous adulterant is PMA (paramethoxyamphetamine), an illegal drug that in May killed two Chicago-area teenagers who took it thinking they were dropping e.
- Used as an adulterant, it can greatly increase our synthetic rubber output.
- Said he: "In Quebec a non-injurious quantity of alcohol may be purchased and drunk freely and openly with State guarantee of freedom from harmful adulterant.