WordReference Random House Unabridged Dictionary of American English © 2025
cir′cular er′ror,
- Time[Horol.]loss of isochronism in a pendulum moving through circular arcs of different sizes: sometimes avoided by causing the pendulum to move through cycloidal arcs.
- Militaryerror measured as the distance from the center of a target to the point of impact of a bomb or shell, or to the ground zero of an aerial burst.
- 1880–85