1
: a clear or yellowish flammable oily liquid mixture of phenolic compounds obtained by the distillation of tar derived from wood and especially from beech wood
2
: a brownish oily liquid consisting chiefly of aromatic hydrocarbons obtained by distillation of coal tar and used especially as a wood preservative
3
: a dark brown or black flammable tar deposited from especially wood smoke on the walls of a chimney
4

creosote

2 of 2

verb

creosoted; creosoting

transitive verb

: to treat with creosote

Examples of creosote in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Smaller touches of creosote and iodine lend complexity and keep the smokiness from being one-dimensional, but overall, the nose isn’t overpoweringly chemical. — David Thomas Tao, Forbes.com, 7 May 2026 Spiky Mexican feathergrass pushes through the gravel in the high desert that smells of creosote after a light rain. — Laura Trujillo, USA Today, 15 Apr. 2026 Upstaging native grasses are invasive brushes like honey mesquite, whitethorn acacia and creosote, far from the ideal food sources for cattle. — Shi En Kim, AZCentral.com, 26 Mar. 2026 Leafing through last year’s Oscar issue, Homer French was inspired enough to paint an Oscar lying among the King Clone creosote, an 11,700-year-old plant considered one of the oldest living organisms on Earth. — Michael Slenske, HollywoodReporter, 14 Mar. 2026 See All Example Sentences for creosote

Word History

Etymology

Noun

German Kreosot, from Greek kreas flesh + sōtēr preserver, from sōzein to preserve, from sōs safe (probably akin to Sanskrit tavīti he is strong); from its antiseptic properties — more at raw

First Known Use

Noun

1835, in the meaning defined at sense 1

Verb

1836, in the meaning defined above

Time Traveler
The first known use of creosote was in 1835

Browse Nearby Words

Cite this Entry

“Creosote.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/creosote. Accessed 25 Sep. 2026.

Kids Definition

creosote

1 of 2 noun
1
: a brownish oily liquid obtained from coal tar and used especially to preserve wood
2
: a dark flammable tar left in a chimney especially from the smoke of a wood fire
3

creosote

2 of 2 verb
creosoted; creosoting
: to treat with creosote

Medical Definition

1
: a clear or yellowish flammable oily liquid mixture of phenolic compounds obtained by the distillation of wood tar especially from beech wood and used especially as a disinfectant and as an expectorant in chronic bronchitis
2
: a brownish oily liquid consisting chiefly of aromatic hydrocarbons obtained by distillation of coal tar and used especially as a wood preservative

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