| rhabditiform larva | Early developmental larval stages (first and second) of soil-borne nematodes such as Necator, Ancylostoma, and Strongyloides, which precede the infectious third-stage filariform larva. (05 Mar 2000) |
|---|---|
| Rhabditis | A genus of small nematodes (family Rhabditidae, order Rhabditida), some of which are free-living, others parasitic on plants and animals; by dwelling on decaying organic matter, including putrefying flesh, some species have been viewed as parasitic or incipient parasites. Rhabditis strongyloides may invade the skin of dogs, cattle, and rodents, causing dermatitis. Origin: G. Rhabdos, a rod (05 Mar 2000) |
| Rhabditis-like | See: rhabditiform larva. (05 Mar 2000) |
| rhabditoidea | A superfamily of nematodes of the order rhabditida. Characteristics include an open tube stoma and an excretory system with lateral canals. (12 Dec 1998) |
| rhabdo- | Rod; rod-shaped (rhabdoid). Origin: G. Rhabdos (05 Mar 2000) |
| rhabdocoela | <zoology> A suborder of Turbellaria including those that have a simple cylindrical, or saclike, stomach, without an intestine. Origin: NL, fr. Gr. "rabdos a rod + hollow. Source: Websters Dictionary (01 Mar 1998) |
| rhabdocoelous | <zoology> Of or pertaining to the Rhabdocoela. Source: Websters Dictionary (01 Mar 1998) |
| rhabdocyte | Rarely used term for band cell or metamyelocyte. Origin: rhabdo-+ G. Kytos, cell (05 Mar 2000) |
| rhabdoid | Rod-shaped. Origin: rhabdo-+ G. Eidos, resemblance (05 Mar 2000) |
| rhabdoid tumour | A rare but highly lethal childhood tumour found almost exclusively in infants. Histopathologically, it resembles rhabdomyosarcoma but the tumour cells are not of myogenic origin. Although it arises primarily in the kidney, it may be found in other parts of the body. The rhabdoid cytomorphology is believed to be the expression of a very primitive malignant cell. (12 Dec 1998) |
| rhabdology | <study> The method or art of performing arithmetical operations by means of Napier's bones. See Napier's bones. Alternative forms: rhabdology. Origin: Gr. Rod, stick: cf. F. Rabdologie. Source: Websters Dictionary (01 Mar 1998) |
| rhabdom | <zoology> One of numerous minute rodlike structures formed of two or more cells situated behind the retinulae in the compound eyes of insects, etc. Origin: Gr. A bundle of rods, fr. "rabdos a rod. Source: Websters Dictionary (01 Mar 1998) |
| rhabdomancy | Same as Rabdomancy. Source: Websters Dictionary (01 Mar 1998) |
| rhabdomere | <zoology> One of the several parts composing a rhabdom. Origin: Rhabdom + -mere. Source: Websters Dictionary (01 Mar 1998) |
| rhabdomyoblast | Large round, spindle-shaped, or strap-shaped cells with deeply eosinophilic fibrillar cytoplasm which may show cross striations; found in some rhabdomyosarcomas. Origin: rhabdo-+ G. Mys, muscle, + blastos, germ (05 Mar 2000) |