[ kil-uh-tuhn ]
/ ˈkɪl əˌtʌn /


a unit of weight, equal to 1000 tons.
an explosive force equal to that of 1000 tons of TNT.

Origin of kiloton

First recorded in 1945–50; kilo- + ton1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for kiloton

  • The 19 kiloton explosion not only led to a quick end to the war in the Pacific but also ushered the world into the atomic age.

    Trinity [Atomic test] Site|White Sands Missile Range Public Affairs Office
  • Jumbo survived the approximately 20 kiloton Trinity blast undamaged, but its supporting 70-foot tall steel tower was flattened.

    Trinity [Atomic Test] Site|The National Atomic Museum

British Dictionary definitions for kiloton

/ (ˈkɪləʊˌtʌn) /


one thousand tons
an explosive power, esp of a nuclear weapon, equal to the power of 1000 tons of TNT
Abbreviation: kt
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