adjective au·to·ther·mal \ˌȯ-tō-ˈthər-məl\

Definition of autothermal


  1. :  of, relating to, or being a reaction that creates synthesis gas using only the heat produced by the reaction itself One of the major advantages of thermophilic digestion (anaerobic and aerobic) is the ability to operate the digester under autothermal conditions. The biogas produced can be used as a heat source for the digester and to generate power. — T. Amani et al., Environmental Reviews, December 2010

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Origin and Etymology of autothermal

1auto- + 1thermal

First Known Use: 1923

Seen and Heard

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capable of being understood in two ways

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