[rey-dee-oh-ther-uh-pee] /ˌreɪ di oʊˈθɛr ə pi/
treatment of disease by means of x-rays or of radioactive substances.
the treatment of disease, esp cancer, by means of alpha or beta particles emitted from an implanted or ingested radioisotope, or by means of a beam of high-energy radiation Compare chemotherapy
1903, from radio- + therapy.
radiation therapy n.
radiotherapy ra·di·o·ther·a·py (rā’dē-ō-thěr’ə-pē)
Treatment of disease with radiation, especially by selective irradiation with x-rays or other ionizing radiation and by ingestion of radioisotopes.
[rey-dee-ey-tiv] /ˈreɪ diˌeɪ tɪv/ adjective 1. giving off . /ˈreɪdɪətɪv/ adjective 1. (physics) emitting or causing the emission of radiation: a radiative collision adj. “having a tendency to radiate,” 1820, from radiate (v.) + -ive. Related: Radiativity.
- Radiative zone
radiative zone (rā’dē-ə-tĭv) The layer of a star that lies just outside the core, to which radiant energy is transferred from the core in the form of photons. In this layer, photons bounce off other particles, following fairly random paths until they enter the convection zone. Despite the high speed of photons, it can take […]
noun, Physics. 1. the capture of a particle, as a neutron, by a nucleus, inducing the emission of electromagnetic radiation, as a gamma ray.
[rey-dee-ey-ter] /ˈreɪ diˌeɪ tər/ noun 1. a person or thing that . 2. any of various heating devices, as a series or coil of pipes through which steam or hot water passes. 3. a device constructed from thin-walled tubes and metal fins, used for cooling circulating water, as in an automobile engine. 4. Radio. a […]