What term describes the ignition that occurs as a result of self-heating?

The term that accurately describes the ignition that occurs as a result of self-heating is self-ignition. Self-ignition refers to a process where materials, generally organic substances, reach their ignition temperature through internal heating without an external ignition source. This can occur due to factors such as oxidation, microbial action, or compression, leading to a spontaneous ignition when the temperature rises sufficiently.

Self-heating itself is a related phenomenon that describes the gradual increase in temperature of a material due to exothermic reactions. However, it does not specifically capture the aspect of ignition; rather, it highlights the process leading up to ignition.

Other terms like short circuit and smoke do not apply in this context, as they refer to electrical issues or combustion byproducts, respectively, rather than the phenomenon of ignition resulting from self-heating. Thus, self-ignition is the most appropriate term in this scenario.