(a) "Licensing authority" means the regents of the university of the state of New York or the state education department, as the case may be, in the case of all professions licensed under title eight of the education law, and the appropriate appellate division of the supreme court in the case of the profession of law.

(b) "Profession" includes any practice as an attorney and counsellor-at-law, or as a licensed physician, and those professions designated in title eight of the education law.

(c) "Professional service" means any type of service to the public which may be lawfully rendered by a member of a profession within the purview of his profession.

(d) "Foreign professional service corporation" means a professional service corporation, whether or not denominated as such, organized under the laws of a jurisdiction other than this state, all of the shareholders, directors and officers of which are authorized and licensed to practice the profession for which such corporation is licensed to do business; except that all shareholders, directors and officers of a foreign professional service corporation which provides health services in this state shall be licensed in this state.

(e) "Officer" does not include the secretary or an assistant secretary of a corporation having only one shareholder.