one of a pattern of navigation lights, usually fixed ashore, used by vessels for manoeuvring in narrow channels at night
one of a distinctive pattern of lights shown at night on the masts of a powered vessel, such as a tugboat, to aid in identifying its size, number of barges in tow, etc
noun 1. (in U.S. public-land surveys) one of two parallel lines running north and south that define the east and west borders of a township. Compare (def 2), .
noun, Ophthalmology. 1. the range of distance over which an object can be accurately focused on the retina by accommodation of the eye. range of accommodation n. The distance between one object that is viewed with minimal refractivity of the eye and another object that is viewed with maximal accommodation.
[reynj-mas-ter, -mah-ster] /ˈreɪndʒˌmæs tər, -ˌmɑ stər/ noun 1. a person in charge of a .
noun, Naval Architecture. 1. the angle to the perpendicular through which a vessel may be heeled without losing the ability to right itself.