exponential absorptionexponential amplifierexponential antennaexponential backoffexponential characteristicexponential classexponential convergence factorexponential curveexponential decayexponential distributionexponential functionexponential hornexponential lawexponential orderexponential processexponential spiralexponential transmission lineexposureexposure doseexposure dose rateexposure meterexpressionextended binary coded decimal interchange codeextended date outputextended industry standard architectureextendingextension codeexterior gateway protocolexternalexternal circuitexternal compensationexternal conductorexternal currentexternal displayexternal feedbackexternal fieldexternal forceexternal influenceexternal loadexternal memoryexternal programexternal resistanceexternal signalexternal viewerexternal voltageextinctionextinction angleextra high voltageextragalactic radio sourceextraodinary component