D defs.my
Entry 1 sense Webster, 1913

midair

· mid·air · IPA /(ˈ)mɪdˈɛɹ/
01 n. some point in the air; above ground level; as, the planes collided in midair; also used attributively; as, a midair collision.
  1. 1.
    some point in the air; above ground level; as, the planes collided in midair; also used attributively; as, a midair collision.