Ba a shigar da kalmar “extropy” a yawancin ƙamus na gargajiya ba, amma kalma ce da ake amfani da ita a fagen ilimin thermodynamics da falsafar transhumanism. amfani dashi azaman kishiyar entropy. Entropy shine ma'auni na rashin lafiya ko bazuwar a cikin tsarin, yayin da extropy shine ma'auni na mataki na tsari ko rikitarwa a cikin tsarin.A cikin mahallin transhumanism, extropy yana nufin yiwuwar ɗan adam don ƙetare iyakokin ilimin halitta ta hanyar amfani da fasaha da kimiyya. Wannan ra'ayi yana jaddada amfani da fasaha don inganta rayuwar ɗan adam da kuma shawo kan iyakokin jikin ɗan adam da hankali.