1 : consisting of one of two equivalent parts in value or quantity; "a half chicken"; "lasted a half hour"
2 : 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"
3 : around the middle of a scale of evaluation; "an orange of average size"; "intermediate capacity"; "medium bombers"
adjectif
1 : of a stage in the development of a language or literature between earlier and later stages
nom
1 : an intervening substance through which signals can travel as a means for communication
2 : a point equidistant from the ends of a line or the extremities of a figure
3 : the most favorable environment for a plant or animal
4 : the location of something surrounded by other things