. "Any process that stops, prevents or reduces the frequency, rate or extent of transforming growth factor beta2 activation." . . . "negative regulation of transforming growth factor beta2 activation" . "down regulation of TGF-beta 2 activation" . "down regulation of TGFB2 activation" . "down regulation of TGFbeta 2 activation" . "down regulation of transforming growth factor beta2 activation" . "down-regulation of TGF-beta 2 activation" . "down-regulation of TGFB2 activation" . "down-regulation of TGFbeta 2 activation" . "down-regulation of transforming growth factor beta2 activation" . "downregulation of TGF-beta 2 activation" . "downregulation of TGFB2 activation" . "downregulation of TGFbeta 2 activation" . "downregulation of transforming growth factor beta2 activation" . "inhibition of TGF-beta 2 activation" . "inhibition of TGFB2 activation" . "inhibition of TGFbeta 2 activation" . "inhibition of transforming growth factor beta2 activation" . "negative regulation of TGF-beta 2 activation" . "negative regulation of TGFB2 activation" . "negative regulation of TGFbeta 2 activation" . .