| circhoral | Occurring cyclically about once an hour. (05 Mar 2000) |
|---|---|
| circinate | Circular; ring-shaped. Origin: L. Circinatus, made round, pp. Of circino, to make round, fr. Circinus, a pair of compasses (05 Mar 2000) |
| circinate retinitis | See: circinate retinopathy. (05 Mar 2000) |
| circinate retinopathy | A retinal degeneration marked by a girdle of sharply defined white exudates around an edematous macula; usually bilateral and typically affects the aged. (05 Mar 2000) |
| circinnate | Spirally coiled, with the tip innermost. (09 Oct 1997) |
| circle | 1. A ring-shaped structure or group of structures. 2. A line or process with every point equidistant from the centre. Synonym: circellus. Origin: L. Circulus (05 Mar 2000) |
| circle absorption anaesthesia | Inhalation anaesthesia in which a circuit with carbon dioxide absorbent is used for complete (closed) or partial (saemiclosed) rebreathing of exhaled gases. (05 Mar 2000) |
| circle of willis | <anatomy> A group of arteries surrounding the base of the brain. (27 Sep 1997) |
| circling disease | Listeriosis in sheep. (05 Mar 2000) |
| circoviridae | A family of very small viruses containing circular, single-stranded DNA and possessing no envelope. The modes of transmission are not known. There is one genus: circovirus. (12 Dec 1998) |
| circoviridae infections | Virus diseases caused by the circoviridae. (12 Dec 1998) |
| circovirus | A genus of the family circoviridae that infects fowl, swine, and psittacine birds. It is the only DNA virus affecting mammals which contains a single-stranded circular genome. The three species are chicken anaemia virus causing transient anaemia and immunosuppression in baby chicks; beak and feather disease virus causing a fatal disease in psittacine birds; and porcine circovirus, not yet associated with any disease. (12 Dec 1998) |
| circuit | The path or course of flow of cases or electric or other currents. Origin: L. Circuitus, a going round, fr. Circum, around, + eo, pp. Itus, to go (05 Mar 2000) |
| circular amputation | Amputation performed by a circular incision through the skin, the muscles being similarly divided higher up, and the bone higher still. Synonym: guillotine amputation, linear amputation. (05 Mar 2000) |
| circular anastomosis | Anastomosis performed after cutting each structure to be joined in a plane vertical to the ultimate flow through the structures. (05 Mar 2000) |