Toluene (noun)

1. A colorless, flammable liquid hydrocarbon with a pungent smell, used as a solvent and in the manufacture of a wide range of chemicals, including benzene and toluene diisocyanate.
2. A volatile, toxic liquid hydrocarbon that is used as a solvent and in the production of chemicals such as benzene, phenol, and toluene diisocyanate.

Origin:

Mid 19th century: from the name of the south american tree myroxylon balsamum + -ene, denoting its presence in the resin.

Examples:

1. Toluene is commonly used as a solvent in paint thinners and adhesives.
2. The fumes from toluene can cause headaches and nausea if inhaled in large amounts.
3. Toluene is a key ingredient in the production of a wide range of industrial chemicals.
4. Toluene is a toxic and flammable liquid hydrocarbon that is used as a solvent and in the production of chemicals such as benzene, phenol, and toluene diisocyanate.
5. The workers were exposed to high levels of toluene, which caused respiratory and neurological symptoms.