Meanings
nounhyracotherium (plural hyracotheriums or hyracotheria)
plural hyracotheriums · plural hyracotheria
- Any of the extinct genus †Hyracotherium of ungulates.
A few mini-beasts occasionally turn up among the mega: an inventive set of paper flaps in the corner of one page illustrates the evolution of the modern wild horse from the diminutive hyracotherium, a cat-size equine ancestor from the Cenozoic era.
2007 May 13, J. D. Biersdorfer, “Dinosaurigami”, in New York Times
Origin
From the genus name.
Full word history & related roots →Cite this entry
APA
hyracotherium. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/hyracotherium
MLA
“hyracotherium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hyracotherium. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “hyracotherium,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/hyracotherium.
Source: hyracotherium on Wiktionary, CC BY-SA 4.0.