ologist

noun

Etymology: From the suffix -ologist.

1. One who studies some branch of learning, especially one ending in -ology; a specialist.

   “First was the increasing number of ologists. While they were far from dominant, their voices were heard throughout the agency, and what they said caused many of the foresters to think.”

   “I was talking with my ologist this week and he asked if I felt like I was in a fog.”