What does "adulterant" mean?

That which adulterates, or reduces the purity of something.

Adulterant

Common synonyms include: adulterating, adulterating, adulterator, contaminant, contaminants, contaminating.

noun

noun ·Rare ·Advanced level

Noun

1
That which adulterates, or reduces the purity of something.
"With regard to the presence of opium in ale, it appears to form a very deleterious adulterant;"
2
any substance that lessens the purity or effectiveness of a substance wordnet

Adjective

"With regard to the presence of opium in ale, it appears to form a very deleterious adulterant;"