1. a dark oily liquid obtained from coal tar or wood tar, used as a preservative for wood and as a disinfectant

1. to treat or coat with creosote

Examples

• Railroad ties are often treated with creosote to prevent rot and insect damage.
• The fence posts were coated with creosote to extend their lifespan.
• Creosote has been used for over a century as a wood preservative.
• The strong smell of creosote filled the air at the lumber yard.
• Workers creosoted the wooden beams before installation.
• Creosote can be derived from either coal tar or wood tar depending on the source.