TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
THR [3 records]
Record 1 - internal organization data 2015-07-29
Record 1, English
Record 1, Subject field(s)
- Airport Runways and Areas
Record 1, Main entry term, English
- threshold
1, record 1, English, threshold
correct, NATO, standardized, officially approved
Record 1, Abbreviations, English
- THR 2, record 1, English, THR
correct, officially approved
Record 1, Synonyms, English
- runway threshold 3, record 1, English, runway%20threshold
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The beginning of that portion of the runway usable for landing. 4, record 1, English, - threshold
Record number: 1, Textual support number: 1 OBS
threshold: term and definition standardized by NATO and the Glossary for Pilots and Air Traffic Services Personnel Committee. 5, record 1, English, - threshold
Record number: 1, Textual support number: 2 OBS
threshold; THR: term and abbreviation officially approved by the International Civil Aviation Organization (ICAO). 6, record 1, English, - threshold
Record 1, French
Record 1, Domaine(s)
- Pistes et aires d'aéroport
Record 1, Main entry term, French
- seuil
1, record 1, French, seuil
correct, masculine noun, NATO, standardized, officially approved
Record 1, Abbreviations, French
- THR 2, record 1, French, THR
correct, masculine noun, officially approved
Record 1, Synonyms, French
- seuil de piste 3, record 1, French, seuil%20de%20piste
correct, masculine noun, officially approved
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Début de la partie de la piste utilisable pour l’atterrissage. 4, record 1, French, - seuil
Record number: 1, Textual support number: 1 OBS
seuil; seuil de piste : termes uniformisés par le Comité d’uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes. 5, record 1, French, - seuil
Record number: 1, Textual support number: 2 OBS
seuil; THR : terme et abréviation uniformisés par l'Organisation de l'aviation civile internationale(OACI). 6, record 1, French, - seuil
Record number: 1, Textual support number: 3 OBS
seuil : terme et définition normalisés par l’OTAN et par le Comité sur le Glossaire à l’intention des pilotes et du personnel des services de la circulation aérienne. 7, record 1, French, - seuil
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Pistas y áreas del aeropuerto
Record 1, Main entry term, Spanish
- umbral
1, record 1, Spanish, umbral
correct, masculine noun, officially approved
Record 1, Abbreviations, Spanish
- THR 2, record 1, Spanish, THR
correct, masculine noun, officially approved
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Comienzo de la parte de pista utilizable para el aterrizaje. 3, record 1, Spanish, - umbral
Record number: 1, Textual support number: 1 OBS
umbral; THR: término, abreviatura y definición aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI). 4, record 1, Spanish, - umbral
Record number: 1, Textual support number: 2 OBS
THR, por sus siglas en inglés. 5, record 1, Spanish, - umbral
Record 2 - internal organization data 2011-02-07
Record 2, English
Record 2, Subject field(s)
- Biochemistry
Record 2, Main entry term, English
- threonine
1, record 2, English, threonine
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- Thr 2, record 2, English, Thr
correct
- T 2, record 2, English, T
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
An amino acid with an aliphatic hydroxyl side chain and which has two centers of asymmetry. 2, record 2, English, - threonine
Record 2, French
Record 2, Domaine(s)
- Biochimie
Record 2, Main entry term, French
- thréonine
1, record 2, French, thr%C3%A9onine
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- Thr 2, record 2, French, Thr
correct
- T 2, record 2, French, T
correct
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Acide aminé alcool glucoformateur indispensable. 3, record 2, French, - thr%C3%A9onine
Record number: 2, Textual support number: 2 DEF
Un des 20 acides aminés qui entre dans la constitution des protéines de la matière vivante. 2, record 2, French, - thr%C3%A9onine
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Bioquímica
Record 2, Main entry term, Spanish
- treonina
1, record 2, Spanish, treonina
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Aminoácido esencial necesario para el crecimiento adecuado en los niños y para el mantenimiento del balance de nitrógeno en los adultos. 2, record 2, Spanish, - treonina
Record 3 - internal organization data 2008-10-20
Record 3, English
Record 3, Subject field(s)
- Aircraft Propulsion Systems
Record 3, Main entry term, English
- propfan
1, record 3, English, propfan
correct, see observation, officially approved
Record 3, Abbreviations, English
Record 3, Synonyms, English
- prop-fan 2, record 3, English, prop%2Dfan
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
Advanced propeller for use at high Mach numbers, having 6 to 12 blades each with thin, sharp-edged lenticular profile and curved scimitar shape. 3, record 3, English, - propfan
Record number: 3, Textual support number: 1 OBS
It is often used to designate both the engine and its propeller. Some competing terms: free fan (Boeing): unducted fan, UDF (GE): ultra fan, advanced propeller (R-R): ultra-high bypass, UHB (McDonnell Douglas): ultra-bypass engine, UBE (Boeing coined this term to describe both geared propfans and gearless unducted fan). However, the term propfan coined by Hamilton Standard, a pioneer in that field, is gaining wide acceptance. 3, record 3, English, - propfan
Record number: 3, Textual support number: 2 OBS
propfan: term officially approved by the Internacional Civil Aviation Organization (ICAO). 4, record 3, English, - propfan
Record 3, French
Record 3, Domaine(s)
- Propulsion des aéronefs
Record 3, Main entry term, French
- hélice transsonique
1, record 3, French, h%C3%A9lice%20transsonique
correct, feminine noun, officially approved
Record 3, Abbreviations, French
Record 3, Synonyms, French
- hélice supercritique 2, record 3, French, h%C3%A9lice%20supercritique
feminine noun
- hélice cimeterre 2, record 3, French, h%C3%A9lice%20cimeterre
feminine noun
- propfan 3, record 3, French, propfan
masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Hélice à grand nombre de pales, plus ou moins recourbées et dotées de profils spéciaux autorisant des Mach de croisière relativement élevés (0,7 à 0,8). 2, record 3, French, - h%C3%A9lice%20transsonique
Record number: 3, Textual support number: 1 OBS
Il existe des versions contrarotatives de ce genre d’hélice. 2, record 3, French, - h%C3%A9lice%20transsonique
Record number: 3, Textual support number: 2 OBS
La nouvelle école(1993) désigne ce système de propulsion sous la zone de Système THR ou propulsion THR-Turbopropulseur à hélices rapides. 4, record 3, French, - h%C3%A9lice%20transsonique
Record number: 3, Textual support number: 3 OBS
hélice transsonique : terme uniformisé par le Comité d’uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes et par l’Organisation de l’aviation civile internationale (OACI). 5, record 3, French, - h%C3%A9lice%20transsonique
Record number: 3, Textual support number: 1 PHR
Propfan monté en queue, sur des mâts. 6, record 3, French, - h%C3%A9lice%20transsonique
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Sistemas de propulsión de aeronaves
Record 3, Main entry term, Spanish
- hélice transónica
1, record 3, Spanish, h%C3%A9lice%20trans%C3%B3nica
correct, feminine noun, officially approved
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
- hélice propfan 1, record 3, Spanish, h%C3%A9lice%20propfan
correct, feminine noun, officially approved
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 OBS
hélice transónica; hélice propfan: términos aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI). 2, record 3, Spanish, - h%C3%A9lice%20trans%C3%B3nica
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: