thetan means A soul, spirit or being. Lexicurio rates it Sui generis — a strength score of 88 out of 100.
thetan is pronounced /ˈθeɪ.tən/.
Etymology
c. Mid 20th c., Coined by Scientology founder L. Ron Hubbard, from theta + -n, from Ancient Greek θῆτα (thêta, “theta”), used in Scientology to represent the source of life.
noun
- A soul, spirit or being.“Actually a thetan is in a very, very small amount of mass. From some experiments conducted about fifteen or twenty years ago – a thetan weighed about 1.5 ounces!”