| ATMOLOGIST | • atmologist n. One who is versed in atmology. • ATMOLOGIST n. one who is versed in atmology. |
| GEMOLOGIST | • gemologist n. An expert in gemology. • GEMOLOGIST n. one who studies gems, also GEMMOLOGIST. |
| NOMOLOGIST | • nomologist n. One who studies nomology. • NOMOLOGIST n. a student of nomology, the science of law. |
| POMOLOGIST | • pomologist n. A person involved in pomology. • POMOLOGIST n. one versed in pomology; one who cultivates fruit trees. |
| ZYMOLOGIST | • zymologist n. (Zymurgy) One who is skilled in zymology, or in the fermentation of liquors. • ZYMOLOGIST n. one who is skilled in zymology, or in the fermentation of liquors. |
| COSMOLOGIST | • cosmologist n. A person who studies cosmology. • COSMOLOGIST n. one who studies cosmology. |
| ETYMOLOGIST | • etymologist n. A lexicographer or linguist who specializes in etymology (the origins of words). • ETYMOLOGIST n. a specialist in etymology. |
| GEMMOLOGIST | • gemmologist n. Alternative form of gemologist. • GEMMOLOGIST n. a student of precious stones, also GEMOLOGIST. |
| ENTOMOLOGIST | • entomologist n. A scientist who studies insects. • ENTOMOLOGIST n. one who studies insects. |
| ENZYMOLOGIST | • enzymologist n. A specialist in enzymology. • ENZYMOLOGIST n. a specialist in enzymology. |
| POTAMOLOGIST | • potamologist n. One who studies rivers. • POTAMOLOGIST n. one who studies rivers. |
| SEISMOLOGIST | • seismologist n. A person who is skilled at, professes, or practices seismology. • SEISMOLOGIST n. one who studies earthquakes. |
| VICTIMOLOGIST | • victimologist n. One who studies victimology. • VICTIMOLOGIST n. one who studies victimology. |
| EPISTEMOLOGIST | • epistemologist n. A person, especially a philosopher, who studies theory of knowledge. • EPISTEMOLOGIST n. a student of epistemology. |
| OPHTHALMOLOGIST | • ophthalmologist n. A medical doctor specializing in the eye: deficiencies of vision requiring correction, and diseases… • OPHTHALMOLOGIST n. one who studies ophthalmology, the science of the eye. |