thermobaric

thermo- +‎ baric, derived from the Ancient Greek words for “heat” and “pressure”: θερμοβαρικός (thermobarikós), from θερμός (thermós, “hot”) + βάρος (báros, “weight, pressure”) + -ικός (-ikós, “-ic”).

thermobaric (not comparable)

1. Describing various weapons that use atmospheric oxygen to produce a blast wave of a significantly longer duration than those produced by condensed explosives.
   • 2022 March 1, Virginia Harrison, “What are thermobaric weapons and how do they work?”, in The Guardian‎:

     Fears have risen over the use of thermobaric weapons by Russia after the Ukrainian ambassador to the US said a vacuum bomb – another term for the weapon – had been used during the invasion.

• thermobaricity

• vacuum bomb

thermobaric (plural thermobarics)

1. A thermobaric weapon