lead-lag noun2 •[before a noun] A cross-correlation of one leading variable with the values of another lagging variable at later times.We utilize robust lead-lag indicators to uncover the origin of price discovery and we propose an econometric model exploiting that effect with level 1 data of limit order books (LOB). — 2022 •In helicopters, the movement of main rotor blades in the plane of rotation due to the inward and outward shifting of their centres of gravity as they flap up and down. formslead-lags