Section 2. Definitions

As used in this chapter: 1. The term "joint stock
  association" includes  every  unincorporated  joint  stock  association,
  company or enterprise having written articles of association and capital
  stock  divided  into  shares,  but  does  not include a corporation or a
  business trust.
    2. The  term  "business  trust"  means  any  association  operating  a
  business  under  a  written  instrument  or  declaration  of  trust, the
  beneficial interest under which is divided into  shares  represented  by
  certificates.
    3.  The  term  "stockholder"  means  every  member  of  a  joint stock
  association.
    4. The term "association," as used in article four  of  this  chapter,
  means  a  joint stock association or a business trust as defined in this
  section.