noun middle.
2. mid ·prep ·see amid.
3. mid ·superl denoting the middle part; as, in mid ocean.
4. mid ·superl occupying a middle position; middle; as, the mid finger; the mid hour of night.
5. mid ·superl made with a somewhat elevated position of some certain part of the tongue, in relation to the palate; midway between the high and the low;
said of certain vowel sounds; as, a (ale), / (/ll), / (/ld). ·see guide to pronunciation, // 10, 11.