| compact bone | The compact, noncancellous portion of bone that consists largely of concentric lamellar osteons and interstitial lamellae. Synonym: substantia compacta, compact substance, substantia compacta ossium. (05 Mar 2000) |
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| compact disks | Computer disks storing data with a maximum reduction of space and bandwidth. The compact size reduces cost of transmission and storage. (12 Dec 1998) |
| compact substance | The compact, noncancellous portion of bone that consists largely of concentric lamellar osteons and interstitial lamellae. Synonym: substantia compacta, compact substance, substantia compacta ossium. (05 Mar 2000) |
| compact torus | <radiobiology> Any of a series of axially symmetric fusion configurations having closed flux surfaces (like a tokamak, not like a mirror machine), but having no material objects piercing the core (as do the toroidal field coils of a tokamak). These devices have an inherently low aspect ratio, approximately unity. The most successful variants are the spheromak and the Field Reversed Configuration. See: low aspect ratio, spheromak, field-reversed configuration. (05 Jan 1998) |
| compressor | 1. A muscle, contraction of which causes compression of any structure. 2. An instrument for making pressure on a part, especially on an artery to prevent loss of blood. Synonym: compressorium. (05 Mar 2000) |
| compressor muscle of lips | <anatomy> The "sucking muscle," a labial muscle formed by sagittal fibres running from the skin to the mucous membrane. Synonym: Aeby's muscle, Bovero's muscle, compressor muscle of lips, Klein's muscle, Krause's muscle, mucocutaneous muscle, musculus cutaneomucosus. (05 Mar 2000) |
| compressor venae dorsalis penis | A variation of the bulbospongiosus muscle in which some fibres pass dorsal to the dorsal vein of the penis; thought at one time to be an important component in the mechanism of erection. Synonym: Houston's muscle. (05 Mar 2000) |
| musculus compressor naris | See: nasalis muscle. (05 Mar 2000) |
| musculus compressor urethrae | Origin, ramus of pubis; insertion, with fellow in median raphe behind and in front of urethra; action, constricts membranous urethra; nerve supply, pudendal. Synonym: musculus sphincter urethrae, external urethral sphincter, Guthrie's muscle, musculus compressor urethrae, musculus constrictor urethrae, musculus sphincter urethrae membranaceae, sphincter muscle of urethra, Wilson's muscle. (05 Mar 2000) |