a property of ionizing radiations that affects their ability to cause biological effects. For weakly ionizing radiations such as gamma rays it has value 1 whilst for alpha rays it is about 20 Former name relative biological effectiveness
[kwol-i-tee-uh v-lahyf] /ˈkwɒl ɪ ti əvˈlaɪf/ adjective 1. affecting the quality of urban life: such quality-of-life crimes as fare-beating and graffiti writing.
- Quality of service
communications, networking (QoS) The performance properties of a network service, possibly including throughput, transit delay, priority. Some protocols allow packets or streams to include QoS requirements. (1998-07-30)
noun 1. . noun 1. a softbound book that is usually larger and more expensive than a mass market paperback and is sold primarily in bookstores as a trade book.
noun 1. Education. .