Dictionary definition · sicken
verb
- cause aversion in; offend the moral sense of"The pornographic pictures sickened us"
- get sick"She fell sick last Friday, and now she is in the hospital"
- upset and make nauseated"The smell of the food turned the pregnant woman's stomach"
- make sick or ill"This kind of food sickens me"
Source: Open English WordNet (CC BY 4.0).