circa 1848, in the meaning defined at sense 1
ultimately from Latin longus long + cornu horn — more at horn
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Cite this Entry
“Longicorn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/longicorn. Accessed 18 Oct. 2021.
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Britannica.com: Encyclopedia article about longicorn
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