One of the mysteries of the English language finally explained.
1Nautical a light positioned at sea or on land, or displayed by a vessel, which serves as a beacon, warning, alert, or guide for ships.
2A lantern or torch; = sense 14 (now rare).
3An electric light bulb giving a yellow glow, used in outdoor lighting, as being less attractive to flying insects than a standard bulb.
Mid 19th century.
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