Wiktionary
dihedrons
n. (plural of dihedron English)
Usage examples of "dihedrons".
Le Cagot, a bull of strength and endurance despite his fifty years, always went down first, sweeping up as he made his slow descent, clearing ledges and dihedrons of loose rock and rubble that could be knocked off by the cable and kill a man in the shaft.
He would be at me ledge, tilting back his head and looking up at the lower of the two dihedrons in the beam of his helmet lamp.
Unnerving, because Hel was now totally dependent on the cable, after ninety minutes of negotiating the narrow, twisting shaft with its bottlenecks, narrow ledges, tricky dihedrons, and tight passages down which he had to ease himself gingerly, never surrendering to gravity because the cable was slack to give him maneuvering freedom.