| HISTORIANS | • historians n. Plural of historian. • HISTORIAN n. a student of history. |
| ORATORIANS | • oratorians n. Plural of oratorian. • ORATORIAN n. a father or priest of an oratory, a Roman Catholic school. |
| PRETORIANS | • pretorians n. Plural of pretorian. • Pretorians n. Plural of Pretorian. • PRETORIAN n. a former praetor or man of equivalent rank, also PRAETORIAN. |
| SUCTORIANS | • suctorians n. Plural of suctorian. • SUCTORIAN n. a cartilaginous fish with a mouth adapted for suction, as the lamprey. |
| INFUSORIANS | • infusorians n. Plural of infusorian. • INFUSORIAN n. an obsolete term for small aquatic organisms, rotifers, algae etc. |
| PRAETORIANS | • praetorians n. Plural of praetorian. • Praetorians n. Plural of Praetorian. • PRAETORIAN n. a former praetor or man of equivalent rank, also PRETORIAN. |
| MADREPORIANS | • madreporians n. Plural of madreporian. • MADREPORIAN n. a coral, a madrepore. |
| PURGATORIANS | • purgatorians n. Plural of purgatorian. • PURGATORIAN n. a person who believes in Purgatory. |
| REFECTORIANS | • refectorians n. Plural of refectorian. • REFECTORIAN n. the officer in charge of the refectory and its arrangements, also REFECTIONER. |
| PREHISTORIANS | • prehistorians n. Plural of prehistorian. • PREHISTORIAN n. an archaeologist who specializes in prehistory. |
| SALUTATORIANS | • salutatorians n. Plural of salutatorian. • SALUTATORIAN n. the second best student in a graduating class, whose job it is to give an introductory speech. |
| POLYHISTORIANS | • polyhistorians n. Plural of polyhistorian. • POLYHISTORIAN n. a person of great and varied learning, also POLYHISTOR. |
| VALEDICTORIANS | • valedictorians n. Plural of valedictorian. • VALEDICTORIAN n. one who bids farewell, e.g. in the US on leaving school. |
| ETHNOHISTORIANS | • ethnohistorians n. Plural of ethnohistorian. • ETHNOHISTORIAN n. a student of ethnohistory. |
| PROTOHISTORIANS | • protohistorians n. Plural of protohistorian. • PROTOHISTORIAN n. one who studies protohistory. |