| sinistrogyration | Synonym: sinistrotorsion. Origin: sinistro-+ L. Gyratio, a turning around (gyration) (05 Mar 2000) |
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| sinistromanual | Synonym: left-handed. Origin: sinistro-+ L. Manus, hand (05 Mar 2000) |
| sinistropedal | Denoting one who uses the left leg by preference. Synonym: left-footed. Origin: sinistro-+ L. Pes (ped-), foot (05 Mar 2000) |
| sinistrorotation | A turning or twisting to the left. Synonym: levorotation, levotorsion, sinistrogyration, sinistrorotation. Origin: sinistro-+ L. Torsio, a twisting (torsion) (05 Mar 2000) |
| sinistrorse | Turned or twisted to the left. Origin: L. Sinistrorsus, on the left side, fr. Sinister, left, + verto, pp. Versus, to turn (05 Mar 2000) |
| sinistrotorsion | A turning or twisting to the left. Synonym: levorotation, levotorsion, sinistrogyration, sinistrorotation. Origin: sinistro-+ L. Torsio, a twisting (torsion) (05 Mar 2000) |
| sinistrous | 1. Of or pertaining to the left, inclining to the left; sinistrous; opposed to dextral. 2. <zoology> Having the whorls of the spire revolving or rising to the left; reversed; said of certain spiral shells. Source: Websters Dictionary (01 Mar 1998) |
| sink | 1. A drain to carry off filthy water; a jakes. 2. A shallow box or vessel of wood, stone, iron, or other material, connected with a drain, and used for receiving filthy water, etc, as in a kitchen. 3. A hole or low place in land or rock, where waters sink and are lost; called also sink hole. Sink hole. The opening to a sink drain. A cesspool. Same as Sink. Source: Websters Dictionary (01 Mar 1998) |
| sinker | One who, or that which, sinks. Specifically: A weight on something, as on a fish line, to sink it. In knitting machines, one of the thin plates, blades, or other devices, that depress the loops upon or between the needles. Dividing sinker, in knitting machines, a sinker between two jack sinkers and acting alternately with them. Jack sinker. See Jack, Sinker bar. In knitting machines, a bar to which one set of the sinkers is attached. In deep well boring, a heavy bar forming a connection between the lifting rope and the boring tools, above the jars. Source: Websters Dictionary (01 Mar 1998) |
| sinneress | A woman who sins. Source: Websters Dictionary (01 Mar 1998) |
| sinoatrial | <anatomy> Relating to the sinus venosus and the right atrium of the heart. Synonym: sinuatrial. (20 Jun 2000) |
| sinoatrial block | <cardiology, physiology> Disturbance of heart conduction in which the atrial response is delayed or omitted because of partial or complete interference with the propagation of impulses from the sinoatrial node to the atria. (12 Dec 1998) |
| sinoatrial chamber | <anatomy> The common chamber formed by the single embryonic atrium and the right and left horns of the sinus venosus. (20 Jun 2000) |
| sinoatrial conduction time | <cardiology, physiology> The time required for an impulse to travel from the sinoatrial node to the atrium; estimated indirectly during asystole by halving the average interval from the premature beat to the following normal sinus beat of the atrium. (05 Mar 2000) |
| sinoatrial nodal artery | <anatomy, artery> A branch usually of the right coronary artery that supplies the sinuatrial node. Synonym: sinus node artery. (05 Mar 2000) |