Topic Navigator

Noun Tree | Nouns Groups | Verb Groups | Search

Parent Categories

entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

process, physical process go
a sustained phenomenon or one marked by gradual changes through a series of states

action, activity, natural process, natural action go
a process existing in or produced by nature (rather than by the intent of human beings)

release go
a process that liberates or discharges something

emission go
the release of electrons from parent atoms

radiation, radioactivity go
the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

corpuscular radiation, particulate radiation
a stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons)

noun.phenomenon

3 Subcategories

alpha radiation, alpha ray go
the radiation of alpha particles during radioactive decay
beta radiation, beta ray, electron radiation go
radiation of beta particles during radioactive decay
neutron radiation go
radiation of neutrons (as by a neutron bomb)