The Collaborative International Dictionary
Decahedral
Decahedral \Dec`a*he"dral\, a. Having ten sides.
Wiktionary
decahedral
a. having ten plane surfaces
Usage examples of "decahedral".
The one she wanted looked like a small castle crowned with a decahedral globe, the insignia of Kuze Nihon, a multinational conglomerate headquartered in Tokyo.
The crystals are composed of oxalate of lime and appear in the different forms shown in the five sections, of octahedral, decahedral, round and dumb bell shapes.