• Mid-

    Origin

    See mid.

    Full definition of mid-

    Prefix

    1. Denoting the middle part.
      • 2013-06-29, Unspontaneous combustion, Since the mid-1980s, when Indonesia first began to clear its bountiful forests on an industrial scale in favour of lucrative palm-oil plantations, “haze” has become an almost annual occurrence in South-East Asia.
    2. He's in his mid-thirties (meaning he is roughly around the age of 33-37, as opposed to one's early thirties — aged roughly 30-33 — and one's late thirties — aged roughly around 37-39).
      He was born in the mid-1930s.
    3. Occupying a middle position.
      a mid-shoulder stretch
    4. Amid.
    5. During, in the middle of doing something.
      He was hit by a ball mid-jump.
    © Wiktionary