noun
also lubber's line or lubber mark or lubber's point
: a fixed line on the compass or other directional indicator of a ship or airplane that is aligned with the longitudinal axis of the ship or plane
noun
also lubber's line or lubber mark or lubber's point
: a fixed line on the compass or other directional indicator of a ship or airplane that is aligned with the longitudinal axis of the ship or plane
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012