| COSMOLOGIST | • cosmologist n. A person who studies cosmology. • COSMOLOGIST n. one who studies cosmology. |
| HOROLOGISTS | • horologists n. Plural of horologist. • HOROLOGIST n. one versed in horology. |
| MONOLOGISTS | • monologists n. Plural of monologist. • MONOLOGIST n. one who soliloquizes; esp. one who monopolizes conversation in company, also MONOLOGUIST. |
| NOMOLOGISTS | • nomologists n. Plural of nomologist. • NOMOLOGIST n. a student of nomology, the science of law. |
| NOSOLOGISTS | • nosologists n. Plural of nosologist. • NOSOLOGIST n. one versed in nosology. |
| NOSTOLOGIES | • NOSTOLOGY n. the study of senility. |
| OECOLOGISTS | • œcologists n. Plural of œcologist. • OECOLOGIST n. a student of oecology, also ECOLOGIST. |
| OENOLOGISTS | • oenologists n. Plural of oenologist. • œnologists n. Plural of œnologist. • OENOLOGIST n. one versed in oenology, a student of wine. |
| ONCOLOGISTS | • oncologists n. Plural of oncologist. • ONCOLOGIST n. one who studies oncology. |
| ONTOLOGISTS | • ontologists n. Plural of ontologist. • ONTOLOGIST n. one who is versed in or treats of ontology. |
| OPTOLOGISTS | • optologists n. Plural of optologist. • OPTOLOGIST n. an optician. |
| OREOLOGISTS | • oreologists n. Plural of oreologist. • OREOLOGIST n. one versed in oreology, the study of mountains, also OROLOGIST. |
| OSTEOLOGIES | • osteologies n. Plural of osteology. • OSTEOLOGY n. the study of bones. |
| OSTEOLOGIST | • osteologist n. A scientist or physician whose speciality is osteology. • OSTEOLOGIST n. one who practises osteology. |
| PODOLOGISTS | • podologists n. Plural of podologist. • PODOLOGIST n. one who practises podology, the study of the feet. |
| POMOLOGISTS | • pomologists n. Plural of pomologist. • POMOLOGIST n. one versed in pomology; one who cultivates fruit trees. |
| SOCIOLOGIST | • sociologist n. A scientist studying the field of sociology; a social scientist. • SOCIOLOGIST n. a student of sociology. |
| TOPOLOGISTS | • topologists n. Plural of topologist. • TOPOLOGIST n. one who studies topology. |