Definition of solfatara in US English:

solfatara

noun

Geology
  • A volcanic crater emitting only sulfurous and other gases.

    • ‘In contrast to P. capillare, no D. lanuginosum plants were observed outside of active solfataras.’
    • ‘Other solfataras and fumaroles have produced a plethora of sulfates, and it is plausible that additional sulfates occur at El Desierto.’
    • ‘This mountain is capped by several castellated masses of basaltic lava, much weather-worn and decomposed by the acid vapours evolved from the surrounding solfataras.’
    • ‘Most of the mountains are clastic stratovolcanic sediments (ashes and tuff), and the abundant solfataras and fumaroles, many of which are still active, are the last phases of the volcanism.’
    • ‘Hydrogen sulfide and steam belch from these fumaroles or solfataras located on the floor of Hawaii's Kilauea Caldera.’
    hollow, bowl, basin, pan, hole, cavity, pocket
    View synonyms

Origin

Late 18th century: from the name of a volcano near Naples, from Italian solfo ‘sulfur’.

Pronunciation