What are some seven letter words with 1st letter O and 2nd letter O and 5th letter S and 6th letter T?

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern OO--ST-. That is, seven letter words with 1st letter O and 2nd letter O and 5th letter S and 6th letter T. In alphabetical order, they are:

oocysts