411 REFERENCE · Wiktionary
Plücker tube
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named after Julius Plücker, German physicist.
Noun
A vacuum tube, used in spectrum analysis, in which the part through which the discharge takes place is a capillary tube, thus producing intense incandescence of the contained gases.
A Crookes tube.
en eponyms