Homo- as a prefix means same. A friend of mine brought up the point that since the Roman Catholic church does not tolerate women in the priesthood and only accepts males, the Roman Catholic priesthood is homo- sexual, homosexual, since they are all of the same sex. He is an English major. Is this definition correct? Btw, here it does not mean sexual attraction in the form of intercourse, only sexual attraction into who is allowed into the group.