| oncometer | <physiology> An instrument for measuring the variations in size of the internal organs of the body, as the kidney, spleen, etc. Origin: Gr. Bulk. Source: Websters Dictionary (01 Mar 1998) |
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| oncometric | Relating to oncometry. (05 Mar 2000) |
| oncometry | Measurement of the size of an organ. (05 Mar 2000) |
| oncomodulin | <molecular biology> Calcium-binding proteins containing the EF hand motif. Found only in tumours and related to panalbumin. (18 Nov 1997) |
| oncomouse | <oncology> Term for a transgenic mouse that has had a foreign oncogene placed into its genome to facilitate the study of the cancer disease process. (14 Nov 1997) |
| oncoplastic carcinoma | <tumour> Obsolete term for an undifferentiated carcinoma showing no evidence by light microscopy of origin from a specific epithelial tissue, e.g., squamous or glandular epithelium. (05 Mar 2000) |
| oncorhynchus | A genus of the family salmonidae (salmons and trouts). They are named for their hooked (onco) nose (rhynchus). They are usually anadromous and occasionally inhabit freshwater. They can be found in north pacific coastal areas from japan to california and adjacent parts of the arctic ocean. Salmon and trout are popular game and food fish. Various species figure heavily in genetic, metabolism, and hormone research. (12 Dec 1998) |
| oncorhynchus keta | An anadromous species of salmon found in the streams of the pacific coast from sacramento north, and also common in japan. It is used frequently in genetic and other medical research. It is called dog salmon and chum salmon, the latter name possibly from chinook jargon for spots or writing, with reference to its body markings. (12 Dec 1998) |
| oncorhynchus kisutch | An anadromous species of salmon ranging from the arctic and pacific oceans to monterey bay, california and inhabiting ocean and coastal streams. It is familiarly known as the coho or silver salmon. It is relatively small but its light-coloured flesh is of good flavor. (12 Dec 1998) |
| oncorhynchus mykiss | A large stout-bodied, sometimes anadromous, trout found in still and flowing waters of the pacific coast from southern california to alaska. It has a greenish back, a whitish belly, and pink, red, or lavender stripes on the sides, with usually a sprinkling of black dots. It is highly regarded as a sport and food fish. Its former name was salmo gairdneri. The sea-run rainbow trouts are often called steelheads. Redband trouts refer to interior populations of rainbows. (12 Dec 1998) |
| oncornaviruses | The family of retroviruses (Retroviridae) that can cause tumours. They are enveloped by membrane derived from the plasma membrane of the host cell, from which they are released by budding without lysing the cell. Within each virion is a pair of single stranded RNA molecules. Replication involves a DNA intermediate made on an RNA template by the enzyme reverse transcriptase. (18 Nov 1997) |
| oncosis | A condition characterised by the formation of one or more neoplasms or tumours. Origin: G. Onkosis, swelling, fr. Onkos, bulk, mass (05 Mar 2000) |
| oncosphere | Synonym: hexacanth. Origin: onco-+ G. Sphaira, sphere (05 Mar 2000) |
| oncosphere embryo | The embryo of tapeworms of the subclass Cestoda, such as Taenia saginata, characterised by three pairs of hooks used for penetration through the gut of an intermediate host. Synonym: oncosphere embryo. (05 Mar 2000) |
| oncostatin M | <growth factor> Multifunctional cytokine (28 kD) with structural and functional similarities to IL-6 and LIF (part of the GM-CSF family of cytokines). Produced by activated T-cells, inhibits tumour cell growth and induces IL-6 production by endothelial cells via the tyrosine kinase p62yes. (18 Nov 1997) |