Certain Terms Defined The following terms (except as otherwise expressly provided or unless the context otherwise clearly requires) for all purposes of this Indenture and of any indenture supplemental hereto shall have the respective meanings specified in this Section. All other terms used in this Indenture that are defined in the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"), or the definitions of which in the Securities Act of 1933, as amended (the "Securities Act"), are referred to in the Trust Indenture Act, including terms defined therein by reference to the Securities Act (except as herein otherwise expressly provided or unless the context otherwise requires), shall have the meaning assigned to such terms in the Trust Indenture Act and in the Securities Act as in effect from time to time. All accounting terms used herein and not expressly defined shall have the meanings assigned to such terms in accordance with generally accepted accounting principles, and the term "generally accepted accounting principles" means such accounting principles as are generally accepted at the time of any computation unless a different time shall be specified with respect to such series of Securities as provided for in Section 2.3. The words "herein," "hereof" and "hereunder" and other words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subdivision. The terms defined in this Article have the meanings assigned to them in this Article and include the plural as well as the singular.