We don't have synonyms for amanitins yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are amenities, amanitine and amanitin.
(n) :
(biochemistry) A deadly amatoxin found in Amanita phalloides (the death cap), the four destroying angels (Amanita bisporigera, Amanita ocreata, Amanita verna, and Amanita virosa), and some other amanitas.
(n) :
(biochemistry) A deadly amatoxin found in Amanita phalloides (the death cap), the four destroying angels (Amanita bisporigera, Amanita ocreata, Amanita verna, and Amanita virosa), and some other amanitas.