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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

optical instrument
an instrument designed to aid vision

noun.artifact

8 Subcategories

binoculars, field glasses, opera glasses go
an optical instrument designed for simultaneous use by both eyes
esophagoscope, oesophagoscope go
an optical instrument for examining the inside of the esophagus
jeweler's glass go
an optical instrument used by jewelers
periscope go
an optical instrument that provides a view of an otherwise obstructed field
projector go
an optical instrument that projects an enlarged image onto a screen
sights go
an optical instrument for aiding the eye in aiming, as on a firearm or surveying instrument
spectacles, specs, eyeglasses, glasses go
optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision
spectroscope, prism spectroscope go
an optical instrument for spectrographic analysis