| spectral | 1. Of or pertaining to a specter; ghosty. "He that feels timid at the spectral form of evil is not the man to spread light." (F. W. Robertson) 2. <optics> Of or pertaining to the spectrum; made by the spectrum; as, spectral colours; spectral analysis. Spectral lemur. <zoology> See Tarsius. Source: Websters Dictionary (01 Mar 1998) |
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| spectral sensitivity | The reciprocal of the amount of monochromatic radiation that produces a fixed response. (05 Mar 2000) |
| absolute intensity threshold acuity | The minimal light that can be seen. (05 Mar 2000) |
| radiant intensity | The luminous flux per unit solid angle in a given direction. Synonym: candle-power, radiant intensity. (05 Mar 2000) |
| dose intensity | In chemotherapy, the total amount of drug delivered in a one-week period. Can be given all at once or over a period of several days. (16 Dec 1997) |
| intensity | The condition or quality of being intense, a high degree of tension, activity or energy. Origin: L. Intensus = intense, tendere = to stretch (18 Nov 1997) |
| intensity of sound | The objective measurement of the amplitude of vibration of a sound wave. (05 Mar 2000) |
| unit of magnetic field intensity | See: gauss, tesla. (05 Mar 2000) |
| luminous intensity | The luminous flux per unit solid angle in a given direction. Synonym: candle-power, radiant intensity. (05 Mar 2000) |
| absorption lines | The dark line's in the solar spectrum due to absorption by the solar and the earth's atmosphere; the phenomenon occurs because rays passing from an incandescent body through a colder medium are absorbed by elements in that medium. (05 Mar 2000) |
| accretion lines | Line's seen in microscopic sections of the enamel, marking successive layers of added material. (05 Mar 2000) |
| amphotropic packaging cell lines | <cell culture, molecular biology> Clonal entities that express genes or act as viral vectors that infect cell lines to stably infect and then express genes of choice. Usually an amphotropic virus. (04 Nov 1997) |
| Baillarger's lines | Two laminae of white fibres that course parallel to the surface of the cerebral cortex and are visible as outer and inner line's in sections cut perpendicular to the surface; the line of Gennari in the calcarine cortex represents the outer of these lines. Synonym: Baillarger's bands. (05 Mar 2000) |
| Beau's lines | Transverse depressions on the fingernails following severe febrile disease, malnutrition, trauma, myocardial infarction, etc. (05 Mar 2000) |
| calcification lines of Retzius | Incremental line's of rhythmic deposition of successive layers of enamel matrix during development. Synonym: lines of Retzius. (05 Mar 2000) |