mastodon
UK /ˈmæs.tə.dɒn/ · US /ˈmæs.tə.dɑn/ noun, proper noun
Forms mastodons mastodont
- noun 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.
- noun (figurative) Anything awkwardly large or unwieldy.
- proper noun (social media) A decentralized microblogging platform, part of the Fediverse.
- noun A nickname for both the 4-8-0 and (though erroneously) the 4-10-0 train configurations.
Synonyms
Etymology
First attested 1813, from translingual Mastodon (1806), coined by French naturalist Georges Cuvier, from masto- (“breast”) + -odon (“tooth”), due to the mammilloid (“nipple-shaped”) projections on the crowns of the extinct mammal's molars.
See mastodon.
Webster’s 1913
- noun An extinct genus of mammals closely allied to the elephant, but having less complex molar teeth, and often a pair of lower, as well as upper, tusks, which are incisor teeth. The species were mostly larger than elephants, and their romains occur in nearly all parts of the world in deposits ranging from Miocene to late Quaternary time.
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “mastodon”, CC BY-SA 4.0. Details