extensor

English

Pronunciation

• Rhymes: -ɛnsə(ɹ)

Noun

extensor (plural extensors)

1. (anatomy) A muscle whose contraction extends or straightens a limb or body part.
   • 2004, Jean-Pierre Hourdebaigt, Canine Massage: A Complete Reference Manual:

     Starting at the point of shoulder, use muscle squeezings, picking-ups, kneadings and gentle frictions, interspersed with effleurages, over the triceps muscle as well as the fleshy part of the flexor and extensor muscle groups.

   • 2021, Peter Cavanagh, “9. Cranes”, in 100 Flying Birds: Photographing the Mechanics of Flight, →ISBN, page 216:

     The bird is then off on a mad dash like an aquatic Roadrunner cartoon: It spreads its legs wide with strong extensor thrusts and long forward strides, and it then steps in the water four or five times, increasing its speed and flapping its wings until it achieves liftoff with a final drag of its toes in the water.

Derived terms

• extensor carpi radialis brevis
• extensor hood
• extensor pollicis brevis
• extensor pollicis longus
• flexoextensor
• hyperextensor

Translations

muscle

• Catalan: extensor m
• Chinese:

  Mandarin: 伸肌 (zh) (shēnjī)

• Danish: please add this translation if you can
• Finnish: ojentajalihas (fi)
• French: extenseur (fr) m
• German: Strecker (de) m, Streckmuskel (de) m, Extensor (de) m
• Greek: please add this translation if you can
• Indonesian: ekstensor (id)
• Russian: разгиба́тель (ru) m (razgibátelʹ), эксте́нзор (ru) m (eksténzor)
• Spanish: extensor (es) m
• Swedish: extensor (sv) c, sträckmuskel c
• Turkish: please add this translation if you can

See also

• flexor
• quadriceps
• triceps

Romanian

Etymology

Borrowed from French extenseur.

Noun

extensor n (plural extensori)

1. extensor

Declension

	singular		plural
	indefinite	definite	indefinite	definite
nominative-accusative	extensor	extensorul	extensori	extensorile
genitive-dative	extensor	extensorului	extensori	extensorilor
vocative	extensorule		extensorilor

Spanish

Pronunciation

• IPA^(key): /eɡstenˈsoɾ/ [eɣ̞s.t̪ẽnˈsoɾ]
• Rhymes: -oɾ
• Syllabification: ex‧ten‧sor

Adjective

extensor (feminine extensora, masculine plural extensores, feminine plural extensoras)

1. extending; that which extends

Noun

extensor m (plural extensores)

1. (anatomy) extensor

Derived terms

• extensor corto del pulgar
• extensor del índice
• extensor radial corto del carpo
• extensor radial largo del carpo
• extensor ulnar del carpo

Further reading

• “extensor”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025
• Seco, Manuel; Andrés, Olimpia; Ramos, Gabino (2023), “extensor”, in Diccionario del español actual [Dictionary of Current Spanish] (in Spanish), third digital edition, Fundación BBVA