(adj) being neither at the beginning nor at the end in a series, Syn. mediate, middle, Example:adolescence is an awkward in-between age; in a mediate position; the middle point on a line
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
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 ]