English edit

Etymology edit

bio- +‎ essential

Adjective edit

bioessential (not comparable)

  1. (sciences) Essential for life
    • 2000, Stuart W. Gibb, “Ammonia”, in Leo M.L. Nollet, editor, Handbook of Water Analysis[1], →ISBN, page 225:
      Nitrogen is one of around 30 bioessential elements incorporated into biogeochemical cycles.