(a) The word, "veterans," shall be construed to mean any person who shall have served in the Armed Forces of the United States as defined in section one of this article.
(b) The term, "federal agency," shall mean any agency, department or bureau created and established by the act of Congress, or executive order of the president of the United States.
(c) The word or term, "administrator," shall be construed to designate and refer to the administrator of veterans' affairs of the United States.
(d) The term or words, "federal act," shall mean any law of the United States.