a. [f. ADD v. + -IBLE. As if ad. L. *addibilis; and so preferred by some to ADDABLE which follows purely English and Fr. analogies.] Capable of being added.
1690. Locke, Hum. Underst., II. xvii. (1727), I. 88. The clearest idea it can get of infinity, is the confused, incomprehensible remainder of endless, addible numbers, which affords no prospect of stop or boundary.
