from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A person; one who is skilled, professes or practices selenology.
from The Century Dictionary and Cyclopedia
- n. Same as selenographer.
These fears became so pervasive that NASA had to 3 institute a commission to confront them, and Mott, as a  leading selenologist, was invited to participate; so for some months his major attention, when not completing his doctorate, was focused on these challenging problems, and it was he who drew up the conclusions which would govern procedures until the moment when men actually stepped upon the lunar surface:
I was geologist - or selenologist, if you want to be pedantic - in charge of the group exploring the southern region of the Mare.
I was geologist-or selenologist, if you want to be pedantic-in charge of the group exploring the southern region of the Mare.