TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
MEGATON [2 records]
Record 1 - internal organization data 2022-10-28
Record 1, English
Record 1, Subject field(s)
- Metrology and Units of Measure
Record 1, Main entry term, English
- megatonne
1, record 1, English, megatonne
correct, standardized
Record 1, Abbreviations, English
- Mt 2, record 1, English, Mt
correct, standardized
Record 1, Synonyms, English
- megaton 3, record 1, English, megaton
correct
- Mt 4, record 1, English, Mt
correct
- Mt 4, record 1, English, Mt
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
One million tons or tonnes ... 3, record 1, English, - megatonne
Record number: 1, Textual support number: 1 OBS
megatonne; Mt: term and abbreviation standardized by Environment Canada and the Translation Bureau for use in the Air Pollutant Emission Inventory Report. 5, record 1, English, - megatonne
Record 1, French
Record 1, Domaine(s)
- Unités de mesure et métrologie
Record 1, Main entry term, French
- mégatonne
1, record 1, French, m%C3%A9gatonne
correct, feminine noun, standardized
Record 1, Abbreviations, French
- Mt 2, record 1, French, Mt
correct, feminine noun, standardized
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Unité de masse valant un million de tonnes. 3, record 1, French, - m%C3%A9gatonne
Record number: 1, Textual support number: 1 OBS
mégatonne; Mt : terme et abréviation normalisés par Environnement Canada et le Bureau de la traduction dans le cadre de l'Inventaire des émissions de polluants atmosphériques. 4, record 1, French, - m%C3%A9gatonne
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2007-06-20
Record 2, English
Record 2, Subject field(s)
- Metrology and Units of Measure
- CBRNE Weapons
Record 2, Main entry term, English
- megaton
1, record 2, English, megaton
correct, officially approved
Record 2, Abbreviations, English
- MT 2, record 2, English, MT
correct, officially approved
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
An explosive force equivalent to that of a million tons of trinitrololuene. 3, record 2, English, - megaton
Record number: 2, Textual support number: 1 OBS
megaton; MT: term and abbreviation officially approved by the Department of National Defence and the Canadian Forces. 4, record 2, English, - megaton
Record 2, French
Record 2, Domaine(s)
- Unités de mesure et métrologie
- Armes CBRNE
Record 2, Main entry term, French
- mégatonne
1, record 2, French, m%C3%A9gatonne
correct, feminine noun, officially approved
Record 2, Abbreviations, French
- Mt 2, record 2, French, Mt
correct, feminine noun
- MT 3, record 2, French, MT
correct, feminine noun, officially approved
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Unité de mesure de la puissance destructrice des bombes atomiques, équivalant à celle d'un million de tonnes de T.N.T. (trinitrotoluène). 4, record 2, French, - m%C3%A9gatonne
Record number: 2, Textual support number: 1 OBS
mégatonne; MT : terme et abréviation uniformisés par le ministère de la Défense nationale et les Forces canadiennes. 5, record 2, French, - m%C3%A9gatonne
Record 2, Spanish
Record 2, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada
Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
Access Translation Bureau glossaries and vocabularies.
- Date Modified: