extremophile /ɛkˈʃtɹiməˌfaɪ̯əl/ noun1 •Any of many organisms that live under extreme conditions of temperature, pressure, salinity, etc; many are autotrophs; some are commercially important as a source of enzymes that operate under similar conditions.They had found the world's first extremophiles – organisms that could live in water that had previously been assumed to be much too hot or acid or choked with sulphur to bear life. — 2003 formsextremophiles
