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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

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

artifact, artefact go
a man-made object taken as a whole

instrumentation, instrumentality go
an artifact (or system of artifacts) that is instrumental in accomplishing some end

equipment go
an instrumentality needed for an undertaking or to perform a service

setup, apparatus go
equipment designed to serve a specific function

nuclear reactor, reactor
(physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements

noun.artifact

8 Subcategories

atomic pile, atomic reactor, pile, chain reactor go
a nuclear reactor that uses controlled nuclear fission to generate energy
breeder reactor go
a nuclear reactor that produces more fissile material than it burns
fast reactor go
nuclear reactor in which nuclear fissions are caused by fast neutrons because little or no moderator is used
gas-cooled reactor go
a nuclear reactor using gas as a coolant
liquid metal reactor go
a nuclear reactor using liquid metal as a coolant
thermal reactor go
a nuclear reactor in which nuclear fissions are caused by neutrons that are slowed down by a moderator
thermonuclear reactor, fusion reactor go
a nuclear reactor that uses controlled nuclear fusion to generate energy
water-cooled reactor go
nuclear reactor using water as a coolant