Webster's Online Dictionary
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Definition: FOCUS TUBE

Part of Speech Definition
Expression 1. (Phys.), a vacuum tube for R[oe]ntgen rays in which the cathode rays are focused upon the anticathode, for intensifying the effect.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Definition: FOCUS TUBE

Part of SpeechDefinition
Expression1. (Phys.), a vacuum tube for R[oe]ntgen rays in which the cathode rays are focused upon the anticathode, for intensifying the effect.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Common Expressions: FOCUS TUBE

ExpressionsDefinition
Focus tube(Phys.), a vacuum tube for R[oe]ntgen rays in which the cathode rays are focused upon the anticathode, for intensifying the effect. Source: Webster's Revised Unabridged Dictionary.

Source: compiled by the editor from various references; see credits.

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