simple past tense and past participle of arson

Of or relating to arson (the crime of deliberately starting a fire with intent to cause damage).

(inorganic chemistry) the acid HAs(OH)₂ derived from arsine / (organic chemistry) any of its hydrocarbyl derivatives

plural of arsonous acid

(inorganic chemistry) the acid HAs(=O)(OH)₂ derived from arsine / (organic chemistry) any hydrocarbyl derivative of this compound

A dog trained to use its sense of smell to locate traces of accelerant at sites of a suspected arson.

plural of arson dog

plural of arsonic acid

(derogatory) Intentional acceleration of climate change.