Thí·ra 
(thîrə, thērä) Formerly San·to·ri·ni (săn′tə-rēnē)
(thîrə, thērä) Formerly San·to·ri·ni (săn′tə-rēnē) An island of southeast Greece in the southern Cyclades Islands north of Crete. The volcanic island has remains of important Minoan settlements.