Term: crookes tube: the original gas-discharge cathode-ray tube
Candidate hypernym: cathode-ray tube: a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen → 1
Candidate hypernym: bad luck: an unpredictable outcome that is unfortunate → 0
Candidate hypernym: menippe: stone crabs → 0
Candidate hypernym: paintbox: a box containing a collection of cubes or tubes of artists' paint → 0
Candidate hypernym: labyrinthodont: an amphibian of the superorder Labyrinthodontia → 0
Candidate hypernym: old man: a man who is very old → 0
Candidate hypernym: aculeus: a sharp-pointed process especially a sting of a hymenopterous insect → 0
Candidate hypernym: neck: a narrow part of an artifact that resembles a neck in position or form → 0
Candidate hypernym: emery stone: a mixture of emery dust and a binder; can be molded into grindstones → 0
Candidate hypernym: insulation: the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity → 0
Candidate hypernym: price: the amount of money needed to purchase something → 0