Denshi Jisho — Online Japanese dictionary

Couldn't find anything for 押し通す~, so trying 押し通す instead.

押し通す おしとおす to persist in; to carry out; to have one's own way; to push through; to carry through
Godan verb with su ending, Transitive verb 

You can also

Look up kanji details for 押し通す.

Try a Yahoo Jisho search for 押し通す .
Try a Goo Jisho search for 押し通す .
Try a Google search for 押し通す .