Doctor Yellow

proper noun

The high-speed track testing train used on the Tokaido Shinkansen and San'yō Shinkansen.

OriginEnglish doctor →
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Meanings

proper noun
  1. humorousrail transportThe high-speed track testing train used on the Tokaido Shinkansen and San'yō Shinkansen.

Origin

  1. Englishdoctor
  2. EnglishDoctor Yellow

Calque from Japanese ドクターイエロー (Dokutā Ierō), itself a pseudo-anglicism from English doctor + yellow, in reference to its diagnostic function and bright yellow appearance.

More words from English

Full word history & related roots →
Cite this entry
APA

Doctor Yellow. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Doctor%20Yellow

MLA

“Doctor Yellow.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Doctor%20Yellow. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “Doctor Yellow,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Doctor%20Yellow.

Source: Doctor Yellow on Wiktionary, CC BY-SA 4.0.