in·ter·me·di·ate 
(ĭn′tər-mēdē-ĭt)
(ĭn′tər-mēdē-ĭt)adj.
Lying or occurring between two extremes or in a middle position or state: an aircraft having an intermediate range; an intermediate school.
n.
1. One that is in a middle position or state.
2. An intermediary.
3. Chemistry A substance formed as a necessary stage in the manufacture of a desired end product.
4. An automobile that is smaller than a full-sized model but larger than a compact.
intr.v. (-āt′) in·ter·me·di·at·ed, in·ter·me·di·at·ing, in·ter·me·di·ates
1. To act as an intermediary; mediate.
2. To intervene.
[Middle English, from Medieval Latin intermediātus, from Late Latin intermedius : Latin inter-, inter- + Latin medius, middle; see medhyo- in the Appendix of Indo-European roots.]
in′ter·medi·a·cy n.
in′ter·medi·ate·ly adv.
in′ter·me′di·ation n.
in′ter·medi·a′tor n.