1. of, relating to, or produced by fumaroles (vents in volcanic regions that emit steam and gases)
Usage: geology; technical

Examples

• The fumarolic activity near the volcano's crater released sulfurous gases into the atmosphere.
• Scientists studied the fumarolic vents to understand the geothermal processes beneath the surface.
• The fumarolic zone was marked by yellow mineral deposits and hot springs.
• Fumarolic emissions provided clues about the volcano's internal temperature and composition.