radio beacon
— Noun
– English
～ a radio station that broadcasts a directional signal for navigational purposes
radio interferometer
— Noun
– English
～ radio telescope that uses interference patterns from two antennas instead of a parabolic antenna
radio link
— Noun
– English
～ a two-way radio communication system (usually microwave); part of a more extensive telecommunication network
radio emission
— Noun
– English
～ an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m
radio news
— Noun
– English
～ a radio broadcast of news
radio announcer
— Noun
– English
～ an announcer whose voice is broadcast on radio
radioactive dating
— Noun
– English
～ measurement of the amount of radioactive material (usually carbon 14) that an object contains; can be used to estimate the age of the object
radioactive dust
— Noun
– English
～ the radioactive particles that settle to the ground after a nuclear explosion
radioactive decay
— Noun
– English
～ the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
radioactivity
— Noun
– English
～ the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
radiobiologist
— Noun
– English
～ a biologist who studies the effects of radiation on living organisms
radiobiology
— Noun
– English
～ the branch of biology that studies the effects of radiation on living organisms
radiocarbon dating
— Noun
– English
～ a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon 14; believed to be reliable up to 40,000 years
radiocarbon
— Noun
– English
～ a radioactive isotope of carbon
radiocarpal joint
— Noun
– English
～ a joint between the distal end of the radius and the proximal row of carpal bones
radiochemist
— Noun
– English
～ a chemist who specializes in nuclear chemistry
radiochemistry
— Noun
– English
～ the chemistry of radioactive substances