In hyperbolic geometry, similar triangles do not exist and the area of a triangle is directly proportional to its angular defect[…].

2007, Oh & Won: Designing an architecture for social semantic digital libraries (SSDL), title

octylic ether

President Roosevelt launched the Lend-Lease idea at a press conference in November 1940 with the parable “suppose my neighbor's house catches fire, and I have the length of a gardenhose...”