dilutant

/ˈdɪlətənt/
noun
  1. A substance used to make another substance thinner or weaker by adding it.
    • The manufacturer recommends using a specific dilutant for this industrial cleaner.
    • In the lab, water is often used as a dilutant for strong acids.
    • The painter added a dilutant to the oil paint to make it easier to spread.
Antonyms
What does "dilutant" mean? | whatsthatwordmean | whatsthatwordmean