D defs.my
Entry 3 senses Webster, 1913

Resolver

/(r?-z?lv"?r)/ · Re·solv·er · IPA
01 n. That which decomposes, or dissolves.
  1. 1.
    That which decomposes, or dissolves.
  2. 2.
    That which clears up and removes difficulties, and makes the mind certain or determined.
  3. 3.
    One who resolves, or formal a firm purpose.