What are some nine letter words with 2nd letter I and 3rd letter O and 4th letter S and 7th letter I?

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern -IOS--I--. That is, nine letter words with 2nd letter I and 3rd letter O and 4th letter S and 7th letter I. In alphabetical order, they are:

biosocial

biosolids

piosities