a no longer in existence; lost or especially having died out leaving no living representatives
an extinct species of fish an extinct royal family extinct laws and customs
a (of e.g. volcanos) permanently inactive
an extinct volcano
s being out or having grown cold
threw his extinct cigarette into the stream
Two South Florida butterflies extinct Two South Florida butterflies appear to have joined the club no one wants to be a member of: Extinct species.
June 11, 2013 - Sun-Sentinel
Two South Florida Butterfly Species Now Extinct South Florida and the rest of the world has lost two more butterfly species. U.S. wildlife officials said Monday the two butterfly species, historically found in South Florida, are likely extinct.
June 11, 2013 - CBS Miami
'Extinct' Frog Reappears in Israel The Hula painted frog was declared extinct in 1996, the first time any amphibian had been declared extinct by the International Union for Conservation of Nature (IUCN), a conservation group.
June 6, 2013 - LiveScience.com via Yahoo! News