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Word: mastodon (lookup usage) (lookup stats)


Meaning:

Noun:

  • A nickname for both the 4-8-0 and (though incorrectly) the 4-10-0 train configurations.
  • Extinct elephant-like mammal of the genus ''Mammut'' that flourished worldwide from Miocene through Pleistocene times; differs from elephants and mammoths in the form of the molar teeth.

Source: Wiktionary | Src Info »