What does OSST,Ter stand for?

OSST,Ter stands for "Third order secular of the Most Holy Trinity"

How to abbreviate "Third order secular of the Most Holy Trinity"?

"Third order secular of the Most Holy Trinity" can be abbreviated as OSST,Ter

What is the meaning of OSST,Ter abbreviation?

The meaning of OSST,Ter abbreviation is "Third order secular of the Most Holy Trinity"

What does OSST,Ter mean?

OSST,Ter as abbreviation means "Third order secular of the Most Holy Trinity"