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Christmas Island

noun
  1. an Australian island in the Indian Ocean, about 190 miles (300 km) S of Java. 52 sq. mi. (135 sq. km).
  2. one of the Line Islands, in Kiribati (Gilbert Islands), in the central Pacific; sovereignty disputed by U.S.: largest atoll in the Pacific; former U.S. test center for nuclear warheads. About 220 sq. mi. (575 sq. km).
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for christmas island

Christmas Island

noun
  1. the former name (until 1981) of Kiritimati
  2. an island in the Indian Ocean, south of Java: administered by Singapore (1900–58), now by Australia; phosphate mining. Pop: 1496 (2013 est). Area: 135 sq km (52 sq miles)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012