We don't have synonyms for andisol yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are anisol and andosol.
(n) :
A kind of soil formed in volcanic ash and containing high proportions of glass and amorphous colloidal materials, including allophane, imogolite, and ferrihydrite.
(n) :
A kind of soil formed in volcanic ash and containing high proportions of glass and amorphous colloidal materials, including allophane, imogolite, and ferrihydrite.