Source : Webster's Revised Unabridged Dictionary (1913)

Pinner \Pin"ner\, n.
   1. One who, or that which, pins or fastens, as with pins.

   2. (Costume)
      (a) A headdress like a cap, with long lappets.
      (b) An apron with a bib; a pinafore.
      (c) A cloth band for a gown. [Obs.]

                With kerchief starched, and pinners clean.
                                                  --Gay.

   3. A pin maker.

Pinner \Pin"ner\, n. [See {Pin} to pound.]
   One who pins or impounds cattle. See {Pin}, v. t. [Obs.]

Source : WordNet®

pinner
     n : a woman's cap with two long flaps pinned on