enneagon

n.

九角形，九边形；

Geometry, theory and practice: The construction of the enneagon in antiquity
AN APPROXIMATE CONSTRUCTION FOR A REGULAR ENNEAGON
Enneagon dissections.
Single-face chisel head with inner enneagon hole
Etude MNDO des composes conjugues enneagonaux
Polyhedral structures with an odd number of vertices: nine-atom clusters and supramolecular architectures.
Closely-related Zn(II)2Ln(III)2 complexes (Ln(III) = Gd, Yb) with either magnetic refrigerant or luminescent single-molecule magnet ...
Approximating Euclidean circles by neighbourhood sequences in a hexagonal grid
Formation energetics of n -member rings at the end of small zigzag carbon nanotubes
Adsorption of M Species and M2 Dimers (M = Cu, Ag, and Au) on the Pristine and Defective Single-Walled Carbon Nanotubes: A Density F...