| AETIOLOGIST | • aetiologist n. One who studies aetiology. • ætiologist n. Obsolete form of etiologist. • AETIOLOGIST n. a student of aetiology, also ETIOLOGIST. |
| BATTOLOGIES | • battologies n. Plural of battology. • BATTOLOGY n. a needless repetition of words in speaking or writing. |
| CETOLOGISTS | • cetologists n. Plural of cetologist. • CETOLOGIST n. one versed in cetology. |
| DITTOLOGIES | • dittologies n. Plural of dittology. • DITTOLOGY n. a twofold reading or interpretation. |
| EROTOLOGIST | • erotologist n. One who studies erotology. • EROTOLOGIST n. a student of erotology. |
| ETHNOLOGIST | • ethnologist n. One who practices ethnology. • ETHNOLOGIST n. a student of ethnology. |
| ETHOLOGISTS | • ethologists n. Plural of ethologist. • ETHOLOGIST n. one who studies or writes upon ethology. |
| ETIOLOGISTS | • etiologists n. Plural of etiologist. • ETIOLOGIST n. a student of etiology, also AETIOLOGIST. |
| ETYMOLOGIST | • etymologist n. A lexicographer or linguist who specializes in etymology (the origins of words). • ETYMOLOGIST n. a specialist in etymology. |
| FETOLOGISTS | • fetologists n. Plural of fetologist. • FETOLOGIST n. one who studies the fetus. |
| METROLOGIST | • metrologist n. One who studies or practices metrology. • METROLOGIST n. a student of metrology. |
| OSTEOLOGIST | • osteologist n. A scientist or physician whose speciality is osteology. • OSTEOLOGIST n. one who practises osteology. |
| PESTOLOGIST | • pestologist n. One who studies pestology. • PESTOLOGIST n. one who studies pestology. |
| PETROLOGIST | • petrologist n. A geologist who specializes in petrology. • PETROLOGIST n. a student of petrology, the geological study of rocks. |
| TAUTOLOGIES | • tautologies n. Plural of tautology. • TAUTOLOGY n. the needless repetition of an idea, statement or word; a redundant statement. |
| TAUTOLOGISE | • tautologise v. Alternative form of tautologize. • TAUTOLOGISE v. to use tautology, also TAUTOLOGIZE. |
| TAUTOLOGIZE | • tautologize v. To speak or write tautology; to repeat the same thing in different words. • TAUTOLOGIZE v. to use tautology, also TAUTOLOGISE. |
| TELEOLOGIST | • teleologist n. One who studies teleology. • teleologist n. One who subscribes to the idea of teleologism. • TELEOLOGIST n. an adherent of teleology. |
| TERATOLOGIC | • teratologic adj. (Genetics) Dealing with the study of production, development, anatomy, and classification of monsters. • teratologic adj. (Teratology) Pertaining to deformity, either congenital or resulting from accident. • TERATOLOGIC adj. relating to teratology, also TERATOLOGICAL. |
| THEOLOGISTS | • theologists n. Plural of theologist. • THEOLOGIST n. a theologian. |