Con*vert"i*ble (?), a. [L. convertibilis: cf. F. convertible.] 1. Capable of being converted; susceptible of change; transmutable; transformable.

Minerals are not convertible into another species, though of the same genus.
Harvey.

2. Capable of being exchanged or interchanged; reciprocal; interchangeable.

So long as we are in the regions of nature, miraculous and improbable, miraculous and incredible, may be allowed to remain convertible terms.
Trench.

• able to be converted
  
• car whose roof can be removed