Meaning of Roman strike

Ro'man strike'

Pronunciation: [key]
— Horol. Horol.
  1. a striking mechanism of c1700, giving the equivalent in tones of Roman numerals, a bell of one pitch striking once for each number I, a bell of another pitch striking once for V, twice for X.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.