Sula (englanniksi)

molten (a)
not having ice cover (a: of bodies of water)
pure (a: intensifier)
melt (s: intensifier)
molten material (s: intensifier / any molten substance)
smelt (s: metallurgy / any of the various liquids or semi-molten solids produced and used during the course of production of metal in a smelting process that involves melting and chemical reduction of metal compounds into purified metal)
Sana perusmuodossa: sulaa