amidships
verb
°(nautical) In the middle of a ship, either longitudinally or laterally.
"[The U-boat captain] waited until the crosshairs lay directly amidships. “Torpedo ... los!”"
°(nautical) Usually in the line of the keel, but sometimes halfway between bow and stern; often contracted to “midships.” (FM 55-501).
interjection
°A helm order, normally shortened to midships!, to centre the helm in the line of the keel.