Radiation
01
energy transmitted through space or matter in the form of waves or particles
例
The sun emits radiation that warms the Earth.
02
the act or process of spreading outward from a central point
例
Light radiation from the lamp illuminated the entire room.
03
the medical treatment of disease, especially cancer, using controlled exposure to radioactive substances or energy
例
She underwent radiation to shrink the tumor.
04
a fan-like arrangement of nerve fibers that connect different regions of the brain
例
The corona radiata is a well-known brain radiation.
05
the expansion of a species into new habitats
例
The radiation of mammals occurred after the extinction of dinosaurs.
06
the spontaneous emission of particles or electromagnetic rays from radioactive substances
例
Uranium undergoes radiation, releasing alpha particles.
07
illness resulting from exposure to ionizing radiation, with symptoms ranging from nausea to death depending on dosage
例
Survivors of the nuclear accident suffered from severe radiation.
語彙ツリー
irradiation
radiation
radiate
radi
