| HEORTOLOGIST | • heortologist n. A person who studies heortology. • HEORTOLOGIST n. one who practises heortology, the study of religious feasts. |
| THOROUGHWORT | • thoroughwort n. Any of several plants of the genus Eupatorium. • thoroughwort n. The common boneset (Eupatorium perfoliatum). • THOROUGHWORT n. a wild flower with perfoliate leaves. |
| HEORTOLOGISTS | • heortologists n. Plural of heortologist. • HEORTOLOGIST n. one who practises heortology, the study of religious feasts. |
| ORNITHOLOGIST | • ornithologist n. A person who studies or practices ornithology. • ORNITHOLOGIST n. one who studies birds. |
| ORTHOGNATHOUS | • orthognathous adj. (Anatomy) straight-jawed. • ORTHOGNATHOUS adj. having a lower jaw that neither projects nor recedes, also ORTHOGNATHIC. |
| ORTHOGONALITY | • orthogonality n. (Mathematics, statistics, software engineering) The property of being orthogonal. • ORTHOGONALITY n. the state of being orthogonal. |
| THOROUGHWORTS | • thoroughworts n. Plural of thoroughwort. • THOROUGHWORT n. a wild flower with perfoliate leaves. |
| ANTHROPOLOGIST | • anthropologist n. An expert in anthropology. • ANTHROPOLOGIST n. one who studies anthropology. |
| CHROMATOLOGIST | • CHROMATOLOGIST n. a specialist in chromatology. |
| ORNITHOLOGISTS | • ornithologists n. Plural of ornithologist. • ORNITHOLOGIST n. one who studies birds. |
| ORTHOPTEROLOGY | • orthopterology n. The scientific study of the Orthoptera. • ORTHOPTEROLOGY n. the study of cockroaches. |
| TEROTECHNOLOGY | • terotechnology n. The engineering and technology related to the design and maintenance of industrial plant machinery. • TEROTECHNOLOGY n. the application of managerial, financial, engineering and other skills to extend the operational life of, and increase the efficiency of, equipment and machinery. |
| ANTHROPOLOGISTS | • anthropologists n. Plural of anthropologist. • ANTHROPOLOGIST n. one who studies anthropology. |
| ASTROPHOTOGRAPH | • astrophotograph n. Alternative form of astrophoto. • ASTROPHOTOGRAPH n. a photograph of a celestial body. |
| CHROMATOLOGISTS | • CHROMATOLOGIST n. a specialist in chromatology. |
| ORTHOGONALITIES | • orthogonalities n. Plural of orthogonality. • ORTHOGONALITY n. the state of being orthogonal. |
| PHOTOLITHOGRAPH | • photolithograph n. A lithograph made by photolithography. • photolithograph v. To produce (a picture or copy) by the process of photolithography. • PHOTOLITHOGRAPH n. a plate produced by photolithography. |
| PHOTOTOPOGRAPHY | • phototopography n. The surveying and mapping of a terrain based solely on terrestrial photographs. • PHOTOTOPOGRAPHY n. the preparation of topographic maps from photographs. |
| PHOTOTYPOGRAPHY | • phototypography n. A photomechanical method of printing made to resemble traditional metal typography. • PHOTOTYPOGRAPHY n. any printing process involving the use of photography. |
| TROUBLESHOOTING | • troubleshooting n. The identification and resolution of problems, especially problems of a technical nature. • troubleshooting v. Present participle of troubleshoot. • TROUBLESHOOT v. to solve problems. |