protectant
/prəˈtɛktənt/
noun
- A substance or product that protects something from damage, such as from water, sun, or insects.
- A wood protectant can help prevent rot and weather damage on outdoor furniture.
- Apply a fabric protectant to your couch to keep it from staining.
- Gardeners often use a plant protectant to keep pests away.
Synonyms