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navigation light, <of a vessel>
signal light, one of a set, carried on a vessel to indicate the presence and aspect, and sometimes the particular occupation and ability to manoeuvre, of the vessel
Note 1 to entry: This entry was numbered 845-11-58 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-805 in CIE S 017:2011.