| Riley, Conrad | <person> U.S. Paediatrician, *1913. See: Riley-Day syndrome. (05 Mar 2000) |
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| Riley, Harris Jr | <person> 20th century U.S. Physician. See: Smith-Riley syndrome. (05 Mar 2000) |
| riley-day syndrome | <radiology> Familial dysautonomia, autosomal recessive, seen in Jewish infants, malfunction of autonomic nervous system, possibly associated with catecholamine release and beta-NGF, hypersecretion of mucous glands, XR resembles cystic fibrosis (12 Dec 1998) |
| rill | 1. A very small brook; a streamlet. 2. <astronomy> See Rille. Origin: Cf. LG. Rille a small channel or brook, a furrow, a chamfer, OE. Rigol a small brook, F. Rigole a trench or furrow for water, W. Rhill a row, rhigol a little ditch. Source: Websters Dictionary (01 Mar 1998) |
| rille | <astronomy> One of certain narrow, crooked valleys seen, by aid of the telescope, on the surface of the moon. Origin: G. Rille a furrow. Source: Websters Dictionary (01 Mar 1998) |
| riluzole | <chemical> A glutamate antagonist that has reported anticonvulsant activity. It has been shown to prolong the survival of patients with amyotrophic lateral sclerosis and has been approved in the united states to treat patients with als. Pharmacological action: anaesthetics, anticonvulsants, excitatory amino acid antagonists, neuroprotective agents. (12 Dec 1998) |