a. [ Pref. inter- + mediate: cf. F. intermédiat. ] 1. Lying or being in the middle place or degree, or between two extremes; coming or done between; intervening; interposed; interjacent; as, an intermediate space or time; intermediate colors. [ 1913 Webster ]

2. Hence: Of or pertaining to an intermediate school; as, intermediate education. [ PJC ]

Intermediate state (Theol.), the state or condition of the soul between the death and the resurrection of the body. --
Intermediate terms (Math.), the terms of a progression or series between the first and the last (which are called the extremes); the means. --
Intermediate tie. (Arch.) Same as Intertie. [ 1913 Webster ]

v. i. To come between; to intervene; to interpose. Milton. [ 1913 Webster ]

n. 1. A person who intermediates between others, especially in negotiations; an intermediary; a mediator. [ PJC ]

2. Something that is intermediate. [ PJC ]

3. Specifically: (Chem.) A compound which is produced in the course of a chemical synthesis, which is not itself the final product, but is used in further reactions which produce the final product; also called synthetic intermediate, intermediate compound or intermediate product; -- contrasted to starting material and end product or final product. There may be many different intermediates between the starting material and end product in the course of a complex synthesis; as, many industrial chemicals are produced primarily to be used as intermediates in other syntheses. The term has the same meaning with respect to intermediate compounds produced in a biosynthetic pathway in living organisms. [ PJC ]

adv. In an intermediate manner; by way of intervention. [ 1913 Webster ]

n. A school having grades at a level between the lower primary grades and the upper secondary grades, being variously grades 4 through 6, or grades 7 through 9, etc. [ PJC ]