Combustible
Combustible noun - A substance that can be burned to provide heat or power.
Heat source and combustible are semantically related. In some cases you can use "Heat source" instead a noun "Combustible".
Nearby Words: combustion, combustibility
Heat source
Combustible and heat source are semantically related. You can use "Combustible" instead a noun phrase "Heat source".
Mutual synonyms
Both terms in one sentence
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Diethyl ether is highly combustible even at relatively low temperatures and therefore dangerous around any kind of heat source, even without open flame or sparks.
Source: Instant Sedation
Cite this Source
Heat source and Combustible. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/combustible/heat_source
Combustible & Heat source. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/combustible/heat_source>.
Heat source or Combustible. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/combustible/heat_source.
Google Ngram Viewer shows how "combustible" and "heat source" have occurred on timeline