1. Located in the middle part of a ship or aircraft
   "The amidship cabins offered the most stability during rough seas"

1. At, near or toward the middle of a ship
   "The cargo was stored amidship"
    
2. At, near or toward the centre of a ship
   "in the late 19th century, engines were placed in front, amidship, and at the rear";
   - amidships, midships

See also: central