| 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. |
| ORTHOHYDROGEN | • orthohydrogen n. (Physics) form of the hydrogen molecule (H2) in which the two nuclei have parallel spin; about 75% of… • ORTHOHYDROGEN n. the form of molecular hydrogen, constituting about 75 per cent of the total at normal temperatures, in which the nuclei of the atoms spin in the same direction. |
| THOROUGHWORTS | • thoroughworts n. Plural of thoroughwort. • THOROUGHWORT n. a wild flower with perfoliate leaves. |
| ORTHOHYDROGENS | • orthohydrogens n. Plural of orthohydrogen. • ORTHOHYDROGEN n. the form of molecular hydrogen, constituting about 75 per cent of the total at normal temperatures, in which the nuclei of the atoms spin in the same direction. |
| PYROPHOTOGRAPH | • PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain. |
| ASTROPHOTOGRAPH | • astrophotograph n. Alternative form of astrophoto. • ASTROPHOTOGRAPH n. a photograph of a celestial body. |
| CHROMOXYLOGRAPH | • chromoxylograph n. A woodcut produced in colour. • CHROMOXYLOGRAPH n. a picture printed in colours from wooden blocks. |
| MACROPHOTOGRAPH | • macrophotograph n. A close-up photograph, showing the fine detail of something. • MACROPHOTOGRAPH n. a larger than life-size closeup photograph. |
| MICROPHOTOGRAPH | • microphotograph n. A photograph so reduced in size that it must be viewed through a lens or a microscope. • microphotograph n. A photograph taken through a microscope, an enlarged picture of a very small item or area; a photomicrograph. • microphotograph v. To create such a photograph. |
| PHOTOMACROGRAPH | • photomacrograph n. A macrograph. • PHOTOMACROGRAPH n. a photograph of an object that is unmagnified or only slightly magnified. |
| PHOTOMICROGRAPH | • photomicrograph n. (Photography) A photograph taken using a microscope. • photomicrograph v. (Transitive) To photograph through a microscope. • PHOTOMICROGRAPH n. a photograph of a microscope image. |
| PYROPHOTOGRAPHS | • PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain. |
| PYROPHOTOGRAPHY | • pyrophotography n. (Photography) Any photographic process involving the use of heat to fix the picture. • PYROPHOTOGRAPHY n. the production of pyrophotographs. |