naphthalene
/ˈnæfθəliːn/
noun
- A white, strong-smelling chemical substance used in mothballs and some industrial products.
- Naphthalene is also used in the production of some plastics and dyes.
- The old trunk smelled strongly of naphthalene from years of storage.
- She put naphthalene mothballs in the closet to protect her wool sweaters.