Meaning

1 senses
  1. (US, informal)A period in the early 1970s when Amtrak operated a fleet of used equipment that still carried the paint schemes of their previous owners.

Origin

From the varied, colorful appearance of multiple liveries in one consist.

From the varied, colorful appearance of multiple liveries in one consist.

Wiktionary, CC BY-SA 4.0 · source

Forms

plural: rainbow eras
Singularrainbow era
Pluralrainbow eras

regular

See also

neighbours in the dictionary
rainbow era — meaning, examples, forms, synonyms | Krumeto