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The word Unicorn is uni-corn, as in one corn(horn).
(lemmy.world)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
Little harder than uni and corn but still good
To be fair, it's a little easier if you're in the medical field, because rhino- is actually used as a medical prefix
An ear, nose, throat doctor's full title is actually Otorhinolaryngology
Means you can make up your own animals with horns in silly places and in arbitrary numbering:
Tesseracephaceros, for example. I'm no etymologist but I think he's got four horns on his head.