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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

restraint, constraint go
a device that retards something's motion

fastening, fixing, fastener, holdfast go
restraint that attaches to something or holds something in place

seal
fastener that provides a tight and perfect closure

noun.artifact

4 Subcategories

break seal go
a seal that must be broken when first used and cannot easily be resealed
gasket go
seal consisting of a ring for packing pistons or sealing a pipe joint
piston ring go
seal consisting of a split metal ring that seals the gap between a piston and the cylinder wall
washer go
seal consisting of a flat disk placed to prevent leakage