| angle of incidence | <optics> The angle that a ray entering a refracting medium makes with a line drawn perpendicular to the surface of this medium, the angle that a ray striking a reflecting surface makes with a line perpendicular to this surface. Synonym: incident angle. (05 Mar 2000) |
|---|---|
| plane of incidence | The plane perpendicular to a lens surface that contains the incident light ray. (05 Mar 2000) |
| incidence | 1. An act or the fact or manner of falling upon or affecting. 2. <statistics> Rate, range or amount of occurrence or influence. (18 Nov 1997) |
| incidence density | The person-time incidence rate. (05 Mar 2000) |
| incidence rate | The rate at which new events occur in a population. The numerator is the number of new events occurring in a defined period; the denominator is the population at risk of experiencing the event during this period. (05 Mar 2000) |
| cumulative | Increasing or growing by accumulation or successive additions. (18 Nov 1997) |
| cumulative action | The condition in which repeated administration of a drug may produce effect's that are more pronounced than those produced by the first dose. Synonym: cumulative action. (05 Mar 2000) |
| cumulative dose | The total dose resulting from repeated exposures to radiation of the same part of the body or of the whole body. (05 Mar 2000) |
| cumulative effect | The condition in which repeated administration of a drug may produce effect's that are more pronounced than those produced by the first dose. Synonym: cumulative action. (05 Mar 2000) |
| cumulative effects | Effects on the environment resulting from actions that are individually minor but that add up to a greater total effect as they take place over a period of time. (05 Dec 1998) |
| Cumulative Index Medicus | Collection of medical literature, published annually, which began in the US Army Surgeon General's office in the last century. It has been taken over by the National Library of Medicine and has evolved into a database called MEDLINE. (05 Mar 2000) |
| cumulative trauma disorders | Harmful and painful condition caused by overuse or overexertion of some part of the musculoskeletal system, often resulting from work-related physical activities. It is characterised by inflammation, pain, or dysfunction of the involved joints, bones, ligaments, and nerves. (12 Dec 1998) |