An early experimental electrical discharge tube by means of which cathode rays and X-rays were discovered.

(often preceded by "every") A very small place; humorous form of nook and cranny / (rare, often preceded by "every") Average person or people.

An agricultural instrument for twisting ropes out of straw.

light mill

plural of Crookes tube

plural of Crookes radiometer

Alternative form of apple crook

A hand-held, wooden agricultural implement used in the harvesting of apples.

(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.

Synonym of Crookes space