We don't have synonyms for pouldron yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are cauldron, poudrin and pauldron.
(n) :
Alternative form of pauldron. [(historical) A component of plate armor that protects the shoulder, generally covering more than a spaulder, also protecting the armpit and overlapping with other armor over the upper chest and back.]
(n) :
Alternative form of pauldron. [(historical) A component of plate armor that protects the shoulder, generally covering more than a spaulder, also protecting the armpit and overlapping with other armor over the upper chest and back.]