A chemical found in some plants, like potatoes and tomatoes, that can be harmful if eaten in large amounts.
Solanin is something you need to be careful with, like a warning to not eat too much of some plants.
Examples:
Solanin is in some plants and can make you sick.
Eating too many green potatoes can give you solanin poisoning.
The doctor said I got sick from eating too much solanin.
I don't want to eat those tomatoes, they have solanin in them!
If you eat too much solanin, you might turn into a tomato!
My mom told me to be careful with solanin in the potatoes.