Gushyushya inzira ni ugukoresha igipimo cyagenwe cyo gushyushya amashanyarazi hejuru yimiyoboro, tank, valve cyangwa ibikoresho byo gutunganya kugirango igumane ubushyuhe bwayo (mugusimbuza ubushyuhe bwatakaye binyuze mumashanyarazi, byitwa no gukonjesha ubukonje) cyangwa kugirango bigabanye kwiyongera kwubushyuhe bwayo .