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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

machine go
any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks

motor go
machine that converts other forms of energy into mechanical energy and so imparts motion

engine go
motor that converts thermal energy to mechanical work

heat engine go
any engine that makes use of heat to do work

internal-combustion engine, ICE
a heat engine in which combustion occurs inside the engine rather than in a separate furnace

noun.artifact

9 Subcategories

diesel, diesel engine, diesel motor go
an internal-combustion engine that burns heavy oil
four-stroke engine, four-stroke internal-combustion engine go
an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke
gas engine go
an internal-combustion engine similar to a gasoline engine but using natural gas instead of gasoline vapor
gasoline engine, petrol engine go
an internal-combustion engine that burns gasoline
outboard motor, outboard go
internal-combustion engine that mounts at stern of small boat
radial engine, rotary engine go
an internal-combustion engine having cylinders arranged radially around a central crankcase
reciprocating engine go
an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders
rotary engine go
an internal-combustion engine in which power is transmitted directly to rotating components
valve-in-head engine go
internal-combustion engine having both inlet and exhaust valves located in the cylinder head