[rey-dee-oh-el-uh-muh nt] /ˌreɪ di oʊˈɛl ə mənt/
a radioactive .
an element that is naturally radioactive
[rey-dee-oh-free-kwuh n-see] /ˌreɪ di oʊˈfri kwən si/ noun, plural radiofrequencies. 1. the of the transmitting waves of a given radio message or broadcast. 2. a within the range of radio transmission, from about 15,000 to 10 11 hertz. Abbreviation: RF, rf.
- Radio-frequency identification
hardware (RFID) Small radio transponders or “tags” designed to be attached to items like products in a supermarket to allow the items to be identified and tracked by a remote system. Typically an RFID tag includes an integrated circuit that stores data and interfaces to the antenna, allowing the stored data to be retrieved by […]
- Radio frequency interference
hardware, testing (RFI) Electromagnetic radiation which is emitted by electrical circuits carrying rapidly changing signals, as a by-product of their normal operation, and which causes unwanted signals (interference or noise) to be induced in other circuits. The most important means of reducing RFI are: use of bypass or “decoupling” capacitors on each active device (connected […]
noun 1. a galaxy that emits much more strongly in the radio part of the spectrum than does a typical galaxy. noun 1. a galaxy that is a strong emitter of radio waves radio galaxy A galaxy that emits large amounts of radio energy. Radio galaxies are typically elliptical galaxies with large symmetrical lobes. The […]