pneumatology

noun

1. (countable, uncountable)The study of spiritual beings and phenomena, especially the interactions between humans and God.
2. (countable, uncountable)The study of the Holy Spirit as revealed in Scripture.

   “These divine qualities migrated to Mary because of deficiencies in the theology of God, in Christology and in pneumatology. It makes no lasting sense to retain this as a permanent status quo, using Mary as a cover-up for defective notions of the divine.”

3. (countable, uncountable)The science dealing with air or gases, their physical and chemical properties, therapeutic applications, etc.