| AGROSTOLOGIST | • agrostologist n. One who studies agrostology. • AGROSTOLOGIST n. one who studies grasses. |
| ELECTROMOTORS | • electromotors n. Plural of electromotor. • ELECTROMOTOR n. a device for applying electricity as a motive power. |
| GERONTOLOGIST | • gerontologist n. A physician who specializes in gerontology. • GERONTOLOGIST n. one who studies gerontology. |
| HEORTOLOGISTS | • heortologists n. Plural of heortologist. • HEORTOLOGIST n. one who practises heortology, the study of religious feasts. |
| LAEVOROTATION | • laevorotation n. Alternative form of levorotation. • lævorotation n. Obsolete form of levorotation. • LAEVOROTATION n. counterclockwise rotation. |
| LAEVOROTATORY | • laevorotatory adj. Alternative spelling of levorotatory. • lævorotatory adj. Alternative spelling of levorotatory. • LAEVOROTATORY adj. counterclockwise; rotating the plane of polarization of light to the left, also LEVOROTARY, LEVOROTATORY. |
| METEOROLOGIST | • meteorologist n. A person who studies meteorology. • meteorologist n. A weather forecaster. • METEOROLOGIST n. one who studies the weather. |
| ORNITHOLOGIST | • ornithologist n. A person who studies or practices ornithology. • ORNITHOLOGIST n. one who studies birds. |
| ORTHOGONALITY | • orthogonality n. (Mathematics, statistics, software engineering) The property of being orthogonal. • ORTHOGONALITY n. the state of being orthogonal. |
| PHOTOELECTRON | • photoelectron n. (Physics) An electron ejected from the surface of a material by the photoelectric effect. • PHOTOELECTRON n. an electron released from a surface by a photon. |
| POLYPROTODONT | • polyprotodont n. Any marsupial of the order Polyprotodontia. • POLYPROTODONT n. any member of the Polyprotodontia, the suborder of marsupials, including opossums, dasyures, etc., with many small incisors. |
| POSTDOCTORALS | • postdoctorals n. Plural of postdoctoral. • POSTDOCTORAL n. a degree beyond the doctoral level. |
| PROCTOLOGISTS | • proctologists n. Plural of proctologist. • PROCTOLOGIST n. a specialist in proctology. |
| PROTONOTARIAL | • PROTONOTARIAL adj. of or like a protonotary, a principle law clerk in certain courts of law. |
| STORIOLOGISTS | • storiologists n. Plural of storiologist. • STORIOLOGIST n. a folklorist. |
| STRATOVOLCANO | • stratovolcano n. (Volcanology) A tall conical volcano, composed of layers (or strata) of hardened lava, tephra and ash. • STRATOVOLCANO n. a composite volcano, composed of alternating layers of lava and pyroclastic material, along with abundant dikes and sills. |
| TROUBLESHOOTS | • troubleshoots v. Third-person singular simple present indicative form of troubleshoot. • TROUBLESHOOT v. to solve problems. |
| ULTRAORTHODOX | • ultraorthodox adj. Very orthodox, chiefly among Jewish sects. • ultra-Orthodox adj. (Of a Jew) Very strictly observant; Haredi; being either Hasidic or Litvish (Misnagdic). • ULTRAORTHODOX adj. extremely orthodox. |