Definition of polyabolo in English:

polyabolo

noun

Geometry
rare
  • Any planar shape formed by joining a number of identical right-angled isosceles triangles along edges of the same length.

Origin

1960s; earliest use found in Scientific American. From poly- + -abolo, by analogy, taking the d- of diabolo (by an intentional false etymology) to represent either di- or duo-: see quot. 1967, and compare polyiamond and (for a similar analogy) earlier pentomino.

Pronunciation

polyabolo

/ˌpɒlɪˈabələʊ/