1. plants belonging to the Solanaceae family, including tomatoes, potatoes, eggplants, and peppers
Usage: botanical
2. poisonous plants of the genus Solanum, especially deadly nightshade

Examples

• Many common vegetables are actually nightshades, including tomatoes and potatoes.
• Some people avoid nightshades due to dietary restrictions.
• The garden contained several poisonous nightshades that needed to be removed.
• Nightshades were once thought to be dangerous because of their relation to toxic varieties.
• Bell peppers and eggplants are both members of the nightshade family.
• The farmer warned children to stay away from the wild nightshades growing near the fence.