| ross river virus | A species of alphavirus associated with epidemic exanthema and polyarthritis in Australia. (12 Dec 1998) |
|---|---|
| Ross, Sir George | <person> Canadian physician, 1841-1931. See: Ross-Jones test. (05 Mar 2000) |
| Ross, Sir Ronald | <person> English physician and Nobel laureate, 1857-1932. See: Ross cycle. (05 Mar 2000) |
| Ross-Jones test | A test for an excess of globulin in the cerebrospinal fluid; 1 ml of cerebrospinal fluid is carefully floated over 2 ml of a concentrated ammonium sulfate solution; if globulin is present in excess, a fine white ring appears at the line of junction in about 3 min. (05 Mar 2000) |
| Rossolimo's reflex | Flicking the tops of the toes from the plantar surface causes flexion of the toes; a stretch reflex of the flexors of the toes seen in lesions of the pyramidal tracts. See: Starling's reflex. Synonym: plantar muscle reflex, Rossolimo's sign. (05 Mar 2000) |
| Rossolimo's sign | Flicking the tops of the toes from the plantar surface causes flexion of the toes; a stretch reflex of the flexors of the toes seen in lesions of the pyramidal tracts. See: Starling's reflex. Synonym: plantar muscle reflex, Rossolimo's sign. (05 Mar 2000) |
| Rossolimo, Grigoriy | <person> Russian neurologist, 1860-1928. See: Rossolimo's reflex, Rossolimo's sign. (05 Mar 2000) |
| rostel | Same as Rostellum. Origin: L. Rostellum, dim. Of rostrum a beak: cf. F. Rostelle. Source: Websters Dictionary (01 Mar 1998) |
| rostellar | Pertaining to a rostellum. Source: Websters Dictionary (01 Mar 1998) |
| rostellate | Having a rostellum, or small beak; terminating in a beak. Origin: NL. Rostellatus. Source: Websters Dictionary (01 Mar 1998) |
| rostelliform | Having the form of a rostellum, or small beak. Source: Websters Dictionary (01 Mar 1998) |
| rostellum | <botany> A beak-like upward extension of the stigma in orchids. (09 Oct 1997) |
| roster | A register or roll showing the order in which officers, enlisted men, companies, or regiments are called on to serve. Origin: Perhaps a corruption of register; or cf. Roll. Source: Websters Dictionary (01 Mar 1998) |
| rostrad | 1. In a direction toward any rostrum. 2. Situated nearer a rostrum or the snout end of an organism in relation to a specific reference point; opposite of caudad. Origin: L. Rostrum, beak, + -ad, toward (05 Mar 2000) |
| rostral | Relating to any rostrum or anatomical structure resembling a beak. Synonym: rostralis. Origin: L. Rostralis, fr. Rostrum, beak (05 Mar 2000) |