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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

device go
an instrumentality invented for a particular purpose

instrument go
a device that requires skill for proper use

arm, weapon, weapon system go
any instrument or instrumentality used in fighting or hunting

weapon of mass destruction, WMD, W.M.D.
a weapon that kills or injures civilian as well as military personnel (nuclear and chemical and biological weapons)

noun.artifact

4 Subcategories

bioweapon, biological weapon, bioarm go
any weapon usable in biological warfare
chemical weapon go
chemical substances that can be delivered using munitions and dispersal devices to cause death or severe harm to people and animals and plants
nuclear weapon, atomic weapon go
a weapon of mass destruction whose explosive power derives from a nuclear reaction
high explosive go
a powerful chemical explosive that produces gas at a very high rate