in-between

from WordNet (r) 3.0 (2006)

in-between
    adj 1: being neither at the beginning nor at the end in a
           series; "adolescence is an awkward in-between age"; "in a
           mediate position"; "the middle point on a line" [syn:
           {in-between}, {mediate}, {middle}]

from The Collaborative International Dictionary of English v.0.48

in-between \in-between\ adj.
   being neither at the beginning nor at the end in a series or
   time sequence; as, adolescence is an awkward in-between age.

   Syn: mediate, middle.
        [WordNet 1.5]

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