Term: reciprocating engine: an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: blind alley: (figurative) a course of action that is unproductive and offers no hope of improvement
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: shower curtain: a curtain that keeps water from splashing out of the shower area
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: prepuce: a fold of skin covering the tip of the clitoris
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: carp: the lean flesh of a fish that is often farmed; can be baked or braised
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: beagle: a small short-legged smooth-coated breed of hound
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: great year: time required for one complete cycle of the precession of the equinoxes, about 25,800 years
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: laparoscope: a slender endoscope inserted through an incision in the abdominal wall in order to examine the abdominal organs or to perform minor surgery
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: digitigrade mammal: an animal that walks so that only the toes touch the ground as e.g. dogs and cats and horses
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: certitude: total certainty or greater certainty than circumstances warrant
Broader: instrumentality: an artifact (or system of artifacts) that is instrumental in accomplishing some end | Unrelated: argosy: one or more large merchant ships