| ABIOGENISTS | • abiogenists n. Plural of abiogenist. • ABIOGENIST n. a believer in abiogenesis, the supposed spontaneous origination of living organisms directly from lifeless matter. |
| ALIENISTS | • alienists n. Plural of alienist. • ALIENIST n. a psychiatrist specialising in legal aspects of mental illness. |
| ECUMENISTS | • ecumenists n. Plural of ecumenist. • ECUMENIST n. an adherent of ecumenism, the doctrines and practice of the Christian ecumenical movement. |
| EPIGENISTS | • epigenists n. Plural of epigenist. • EPIGENIST n. one who studies the gradual development of the embryo. |
| ETHNOGENISTS | • ETHNOGENIST n. a student of ethnogeny. |
| EUGENISTS | • eugenists n. Plural of eugenist. • EUGENIST n. a student of eugenics. |
| EUTHENISTS | • euthenists n. Plural of euthenist. • EUTHENIST n. a student of euthenics, the science concerned with improving living conditions. |
| HYGIENISTS | • hygienists n. Plural of hygienist. • HYGIENIST n. one skilled in hygiene, also HYGEIST, HYGIEIST. |
| LARCENISTS | • larcenists n. Plural of larcenist. • LARCENIST n. one who commits larceny, also LARCENER. |
| LICHENISTS | • lichenists n. Plural of lichenist. • LICHENIST n. one who studies lichen. |
| LUTENISTS | • lutenists n. Plural of lutenist. • LUTENIST n. a lute-player, also LUTANIST, LUTER, LUTIST. |
| MISCEGENISTS | • miscegenists n. Plural of miscegenist. • MISCEGENIST n. a person who favours or practises miscegenation, also MISCEGENATOR. |
| MONOGENISTS | • monogenists n. Plural of monogenist. • MONOGENIST n. a believer in monogenism. |
| PHENOMENISTS | • phenomenists n. Plural of phenomenist. • PHENOMENIST n. a believer in phenomenism. |
| PHILHELLENISTS | • Philhellenists n. Plural of Philhellenist. • PHILHELLENIST n. one who loves Greece, also PHILHELLENE. |
| PHILLUMENISTS | • phillumenists n. Plural of phillumenist. • PHILLUMENIST n. a collector of matchbooks. |
| PLENISTS | • plenists n. Plural of plenist. • PLENIST n. one who holds that all space is full of matter. |
| POLYGENISTS | • polygenists n. Plural of polygenist. • POLYGENIST n. one who maintains that animals of the same species have sprung from more than one original pair. |
| RIPIENISTS | • ripienists n. Plural of ripienist. • RIPIENIST n. a supplementary instrumentalist. |