Definition of balance wheel:
- A ratchet- shaped scape wheel, which in some watches is acted upon by the axis of the balance wheel proper ( in those watches called a balance).
- A wheel which imparts regularity to the movements of any engine or machine; a fly wheel.
- A wheel which regulates the beats or pulses of a watch or chronometer, answering to the pendulum of a clock; - often called simply a balance.
equalizer, counterweight, residuum, residual, remainder, correspondence, equipoise, balance, equaliser, equilibrium, symmetricalness, proportionality, proportion, counterbalance, symmetry, residue, rest, counterpoise.