. "\"Any process that activates or increases the frequency, rate or extent of the controlled release of glutamate.\" [GOC:ef]" . . "positive regulation of glutamate secretion" . "up regulation of glutamate secretion" . "up-regulation of glutamate secretion" . "upregulation of glutamate secretion" . . . . . "activation of glutamate secretion" . "stimulation of glutamate secretion" .