adv. (Naut.) In the middle of a ship, with regard to her length, and sometimes also her breadth. Totten. [ 1913 Webster ]
adv. [ For amidships. ] (Naut.) In the middle of a ship; -- properly
n. pl. (Naut.) The timbers at the broadest part of the vessel. R. H. Dana, Jr. [ 1913 Webster ]