Mastodon

Etymology
Coined by French naturalist, from + , from the similarity of the mammilloid projections on the crowns of the extinct mammal's molars.

Etymology
See.

Proper noun

 * 1)  A decentralized microblogging platform, part of the Fediverse.
 * 2)  An American heavy metal band.
 * 1)  An American heavy metal band.
 * 1)  An American heavy metal band.

Noun

 * 1) A nickname for both the 4-8-0 and (though incorrectly) the 4-10-0 train configurations.

Noun

 * 1) mastodon