Definitions for "Athwartship"
Keywords:  fore, aft, centerline, angle, starboard
At right angles to the fore-aft line of a vessel
At a right angle to the centerline, as a passageway which runs from port to starboard as opposed to fore and aft.
At right angles to the centerline of the boat.
transverse or across a vessel from side to side.
Across the vessel, orientated perpendicularly to the longitudinal axis of the vessel.