231 Pa. Code § 2126
As used in this chapter:
Action-Any civil action or proceeding brought in or appealed to any court which is subject to these rules.
Firm name-Any name, fictitious or otherwise, by which a partnership conducts business or is commonly known whether or not such name has been filed or registered.
Liquidator-Any person legally engaged in winding up the affairs of a dissolved partnership.
Partner-Only a general partner or a limited partner who has become subject to the liability of a general partner.
Partnership-A general or limited partnership, whether it is also a registered limited liability partnership or electing partnership, and does not mean a limited liability company, unincorporated association, joint stock company or similar association.
231 Pa. Code § 2126