Crookes space

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English[edit]

Etymology[edit]

After Sir William Crookes, English chemist, who first described it.

Noun[edit]

Crookes space (plural Crookes spaces)

  1. (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.

Synonyms[edit]

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