overpressure overpress • overpresumption · · · Info · Definitions · Characters · · overpressure · · Text Latin · · Script 12 · · Length 4 · · Syllables Definitions · · · (noun) a transient air pressure greater than the surrounding atmospheric pressure. Example: "The overpressure of the blast kills by lethal concussion." · · Noun Definition 1 Characters · · e latin small letter e U+0065 o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075 v latin small letter v U+0076