Webster’s Revised Unabridged Dictionary · 1913
Exchangeable
Ex·change′a·ble (ĕks·chānj′ȧ·b'l), a. [Cf.F. échangeable.] 1. Capable of being exchanged; fit or proper to be exchanged.
The officers captured with Burgoyne were exchangeable within the powers of General Howe. Marshall.
2. Available for making exchanges; ratable. "An exchangeable value." J. S. Mill.