Term: boron chamber: an ionization chamber lined with boron or filled with boron trifluoride gas for counting low velocity neutrons
Candidate hypernym: object: a tangible and visible entity; an entity that can cast a shadow → 1
Candidate hypernym: abney level: a surveying instrument consisting of a spirit level and a sighting tube; used to measure the angle of inclination of a line from the observer to the target → 0
Candidate hypernym: truss bridge: a bridge supported by trusses → 0
Candidate hypernym: circuit court of appeals: one of the twelve federal United States courts of appeals that cover a group of states known as a `circuit' → 0
Candidate hypernym: hamamelidanthum: genus of fossil plants of the Oligocene having flowers resembling those of the witch hazel; found in Baltic region → 0
Candidate hypernym: switch: control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit → 0
Candidate hypernym: gout: a painful inflammation of the big toe and foot caused by defects in uric acid metabolism resulting in deposits of the acid and its salts in the blood and joints → 0
Candidate hypernym: hymenaea: genus of tropical American timber trees → 0
Candidate hypernym: sponge cloth: any soft porous fabric (especially in a loose honeycomb weave) → 0
Candidate hypernym: opium den: a building where opium is sold and used → 0
Candidate hypernym: mylar: a thin polyester film → 0