thermobaric adjective 1noun 1forms 1 adjective1 •Describing various weapons that use atmospheric oxygen to produce a blast wave of a significantly longer duration than those produced by condensed explosives.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. — 2022 noun1 •A thermobaric weapon. formsthermobarics
