hypar
n.— «Saturday, June 9, Cleveland offered members of ITSA an opportunity to examine a model of a hyperbolic paraboloid, which is sometimes called a hypar, by coming to Spring Valley to see some of the alternative building methods in the southeastern Minnesota area.» —“Alternative building methods on display in area” by Mary Whalen Spring Valley Tribune (Minnesota) June 20, 2007. (source: Double-Tongued Dictionary)
Further reading
Alright, alright, alright! How do some catchphrases become part of the larger vernacular—to the point where people don’t always know the original reference? And the island of Ocracoke off the coast of North Carolina has a distinctive dialect all its...
In Enough is Enuf: Our Failed Attempts to Make English Easier to Spell (Bookshop|Amazon), Gabe Henry recounts the story of the first national spelling bee in 1908, which some contestants had threatened to boycott because one of the contestants from...