Definition of protraction in English:

Share this entry


Pronunciation: /prəˈtrakʃ(ə)n/


[mass noun]
1The action of prolonging something or the state of being prolonged: the protraction of the war
More example sentences
  • Imagine them denuded of even the attenuated r and r release that they are allowed there; imagine their seemingly infinite protraction.
  • Such mathematical protraction excites the studious poker mind of the Wimbledon manager.
  • For breast cancer a loss of local control of 3% has been described for each day of protraction between external beam radiotherapy and brachytherapy boost.
2The action of extending a part of the body.
Example sentences
  • Another role of the scapula involves retraction and protraction along the thoracic wall.
  • Many adult frogs capture prey on land using a forward lunge of the entire body in combination with protraction of a short tongue that reaches only slightly beyond the margins of the jaws.
  • Muscles necessary for the rapid dorsoventral expansion of the head are composed primarily of fast-twitch fibers while those involved in more tonic contractions such as hyoid protraction have more slow-twitch muscle fibers.


Mid 16th century: from French, or from late Latin protractio(n-), from protrahere 'prolong' (see protract).

Words that rhyme with protraction

abstraction, action, attraction, benefaction, compaction, contraction, counteraction, diffraction, enaction, exaction, extraction, faction, fraction, interaction, liquefaction, malefaction, petrifaction, proaction, putrefaction, redaction, retroaction, satisfaction, stupefaction, subtraction, traction, transaction, tumefaction, vitrifaction

For editors and proofreaders

Line breaks: pro|trac¦tion

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.