Crookes space
(colloquial) A spray-toilet, bidet seat, or any bathroom product meant to cleanse the user.
plural of mother-in-law seat
A proponent of Cobdenism.
(physics, dated) The dark space within the negative-pole glow at the cathode of a vacuum tube, observed only when the pressure is low enough to give a striated discharge.
放電管の圧力が十分に下がると、陰極光の暗黒部がはっきりとした帯として陰極の周りに現れた。
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