meaning of suffix in hunspell files i.e. `/EPSozm`

When I grep for phan in my hunspell-dic file /usr/share/hunspell/de_DE_frami.dic, I get list of words including

/Sm
cellophan/Sozm
cellophan/hke
cellophan/ozm
glaukophan/EPSozm

Where do I find documentation, what the suffixes mean? I looked for a manpage for hunspell but only found a non helpful one to update-dictcommon-hunspell. man dict? didn't help either.