(1):
(n.) A climbing shrub, with oval coral-red berries (Solanum dulcamara); woody nightshade. The whole plant is poisonous, and has a taste at first sweetish and then bitter. The branches are the officinal dulcamara.
(2):
(n.) A kind of apple so called.
(3):
(n.) Anything which is bittersweet.
(4):
(a.) Sweet and then bitter or bitter and then sweet; esp. sweet with a bitter after taste; hence (Fig.), pleasant but painful.
(5):
(n.) An American woody climber (Celastrus scandens), whose yellow capsules open late in autumn, and disclose the red aril which covers the seeds; - also called Roxbury waxwork.