English edit

Etymology edit

micro- +‎ constituent

Noun edit

microconstituent (plural microconstituents)

  1. A microscopic constituent.
    • 2007 August 22, “Yes, Tap Water Is Plentiful, but Is It Fit to Drink? (4 Letters)”, in New York Times[1]:
      I don’t know if bottled water protects us from those microconstituents, but I do know that I want to be able to choose whether or not to drink water from the tap.