| orthotopic | In the normal or usual position. Origin: ortho-+ G. Topos, place (05 Mar 2000) |
|---|---|
| orthotopic graft | Transplantation of a tissue or organ into its normal anatomical position. (05 Mar 2000) |
| orthotropic | <botany> Having the longer axis vertical; said of erect stems. See: Orthotropal. Source: Websters Dictionary (01 Mar 1998) |
| orthotropous | <cell biology> Of an ovule, erect so that the micropyle points away from the placenta. (09 Oct 1997) |
| orthovoltage | In radiation therapy, a vague term for voltage between 400 and 600 kv. (05 Mar 2000) |
| orthoxylene | <chemistry> That variety of xylene in which the two methyl groups are in the ortho position; a colourless, liquid, combustible hydrocarbon resembling benzene. Origin: Ortho- + xylene. Source: Websters Dictionary (01 Mar 1998) |