D defs.my
Entry 2 senses Webster, 1913

Exchangeable

/ĭk-schān'-jəb-əl/ · Ex·change·a·ble · IPA /ɪkstʃˈeɪndʒəbəl/
01 a. Capable of being exchanged; fit or proper to be exchanged.
  1. 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. 2.
    Available for making exchanges; ratable.