critical organ n.
The organ or physiological system that would first be subjected to radiation in excess of the maximum permissible amount as the dose of a radioactive material is increased.
- Critical path
noun the necessary path or sequence from start to finish, determining the time needed for completion; the longest most time-consuming path in a network
- Critical period
noun 1. (psychol) a period in a lifetime during which a specific stage of development usually occurs. If it fails to do so, it cannot readily occur afterwards noun a time in a person’s development in which a certain skill or characterized would be most readily acquired Usage Note psychology
- Critical path analysis
noun 1. a technique for planning complex projects by analysing alternative systems with reference to the critical path, which is the sequence of stages requiring the longest time Compare programme evaluation and review technique
noun 1. Physics. the point at which a substance in one phase, as the liquid, has the same density, pressure, and temperature as in another phase, as the gaseous. 2. Mathematics. noun 1. (physics) 2. (maths) the US name for stationary point critical point