Named after German mathematician Felix Klein (1849-1925) who first described such a surface in 1882. bottle seems to have come from a misreading or mistranslation of German Fläche as Flasche.
Modern English dictionary
Explore and search massive catalog of over 900,000 word meanings.
Word of the Day
Get a curated memorable word every day.
Challenge yourself
Level up your vocabulary by setting personal goals.