Main Entry: mas·to·don
Pronunciation: 'mas-t&-"dän, -d&n
Etymology: New Latin mastodont-, mastodon, from Greek mastos + odont-, odOn, odous tooth -- more at TOOTH
1 : any of numerous extinct mammals (genus Mastodon syn. Mammut) that differ from the related mammoths and existing elephants chiefly in the form of the molar teeth
2 : one that is unusually large
Knowing that mastos in Greek means breast and odontos means tooth, does that mean that the mastodon is an animal with a tooth on its breast?