Definition of "rosebay" []

• Any of several shrubs of the genus Rhododendron, especially R. maximum of the southeast United States, having large glossy leaves and flowers with a rose-pink, bell-shaped corolla with green spots. Also called great laurel. (noun)
• See oleander. (noun)
• Chiefly British The willow herb. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Even in the really bright pink flowers such as rosebay willowherb, blue sneaks in to add a trace of purple as it does in wild thyme and centaury."
• "In the waste ground by the edge of Hollingside wood tall spikes of rosebay willowherb, tipped with the last of their purple flowers, were releasing their downy seeds."
• "In the exposed plantation known as Sentry Hill Wood, beech leaves are brown and the patch of Lloyd George's ground left as downland when a tax was imposed on reclamation is covered in rank bracken and bedraggled rosebay willowherb interspersed with gorse, rowan, willow and oak."