| rachiotomy | Synonym: laminotomy. Origin: rachio-+ G. Tome, incision (05 Mar 2000) |
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| rachipagus | Conjoined twins united back to back as a result of fusion of their spinal columns. See: conjoined twins. Synonym: rachipagus. Origin: rachio-+ G. Pagos, something fixed (05 Mar 2000) |
| rachis | The main stem of an inflorescence or a pinnate leaf. (09 Oct 1997) |
| rachischisis | 1. Embryologic failure of fusion of vertebral arches and neural tube with consequent exposure of neural tissue at surface; spina bifida cystica with myelocele or myeloschisis. 2. Spinal dysraphism. Origin: G. Rhachis, spine, + schisis, division (05 Mar 2000) |
| rachischisis partialis | Merorrhachischisis Fissure of a portion of the spinal cord. Synonym: mesorrhachischisis, rachischisis partialis. Origin: mero-+ G. Rhachis, spine, + schisis, fissure. (05 Mar 2000) |
| rachischisis totalis | Spina bifida of the entire spinal column. Synonym: araphia, rachischisis totalis. Origin: holo-+ G. Rhachis, spine, + schisis, fissure (05 Mar 2000) |
| rachitic | To do with rickets, a disease caused by Vitamin D deficiency. (18 Nov 1997) |
| rachitic diet | A diet that will induce rickets in susceptible experimental animals. (05 Mar 2000) |
| rachitic pelvis | A contracted and deformed pelvis, most commonly a flat pelvis, occurring from rachitic softening of the bones in early life. (05 Mar 2000) |
| rachitic rosary | A row of beading at the junction of the ribs with their cartilages, often seen in rachitic children. Synonym: beading of the ribs. (05 Mar 2000) |
| rachitic scoliosis | Scoliosis occurring as a result of rickets. (05 Mar 2000) |
| rachitis | 1. <medicine> Literally, inflammation of the spine, but commonly applied to the rickets. See Rickets. 2. <botany> A disease which produces abortion in the fruit or seeds. Origin: NL, fr. Gr. (sc), fr, the spine Alternative forms: rhachitis. Source: Websters Dictionary (01 Mar 1998) |
| rachitis foetalis | congenital rickets |
| rachitis foetalis annularis | Congenital enlargement of the epiphyses of the long bones. (05 Mar 2000) |
| rachitis foetalis micromelica | A congenital condition in which development of the long bones is deficient. (05 Mar 2000) |