radiation

nouns

energy that is radiated or transmitted in the form of rays or waves or particles

radiation

is derived from

is a type of (narrower)

(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs

"energy can take a wide variety of forms"

energy, free energy

the act of spreading outward from a central source

radiation

is derived from

radiate

is a type of (narrower)

the act of emitting; causing to flow forth

emanation, emission

syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours

"he was suffering from radiation"

radiation, radiation sickness, radiation syndrome

the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

radiation, radioactivity

the spread of a group of organisms into new habitats

radiation

is derived from

radiate

is a type of (narrower)

process or result of distributing or extending over a wide expanse of space

spread, spreading

is a type of (narrower)