monohedron

noun3

1. •
   A solid figure with a single continuous surface (face) and no edges, such as a torus or spheroid.

   • This is a reflection of the fact that the monohedron collapses asymptotically to a line (along the w₁-axis) when T -> Tₜ (t -> 0) (Widom, 1975c). — 1972
2. •
   A pedion.

   • Then, in the above example, to RPS lying on the equator there corresponds a prism, to those lying outside the equator, a pyramid, and to the polar point, a monohedron. — 2013
3. •
   A type of hull that has a constant deadrise.

   • The beginner may be confused by old hands learnedly discussing the rival merits of monohedron and warped bottoms, so this matter will be cleared up first. — 1961