Definition of insertion in English:

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Pronunciation: /ɪnˈsəːʃ(ə)n/


1 [mass noun] The action of inserting something: he didn’t notice the insertion of the envelope into his pocket
More example sentences
  • Just prior to insertion of the IV line, the dressing and cream should be removed.
  • They used invasive methods of blood pressure recording, possibly insertion of an arterial line.
  • Hello, strange indentation in shin identical to the little depressions alien abductees believe are the points of insertion for their implants.
2A thing that is inserted, in particular:
Example sentences
  • A quick insertion - recognizing the fragility of the physical is not the same thing as rejecting the physical.
2.1An amendment or addition inserted in a text: omissions and insertions which do not affect the sense an annual insertion in the local telephone directory
More example sentences
  • The only snag is that, unlike sheets of paper covered with scribble, you tend to lose the process history of a poem when you work at a computer, all the scratchings out, insertions and additions.
  • Editorial insertions of stereotypes and fabrications into a Times reporter's copy extended at least into the 1980s.
  • Transcriptions from Newton's manuscripts represent deletions as strike-outs and insertions are enclosed within angle brackets.
2.2Each appearance of an advertisement in a newspaper or periodical.
Example sentences
  • There were 392 insertions in over 450 newspapers.
  • It has tactically placed more than 150 advertising insertions from January to June promoting the strapline, ‘Connects you to the world’.
  • In addition to cross-channel promotions, ad insertions and mailings will be utilized to lure potential customers.
2.3An ornamental section of cloth or needlework inserted into a garment.
Example sentences
  • This pretty lace insertion would be wonderful added to a summer garment.
3 Anatomy & Zoology The place or manner of attachment of an organ: close to the point of leaf insertion
More example sentences
  • The first design trend we examine here is in the orientation of the pectoral fin base, defined externally as the angle of inclination of the insertion of the pectoral fin on the body.
  • The stiff peduncle, in turn, functions as a rigid base for the flexible insertion of the caudal fin.
  • The surgeon places two clips distal to the intended line of division and one on the cystic duct approximately 5 mm from its insertion into the common bile ducts.
3.1The place or manner of attachment of a muscle to the part which it moves: the names of the muscles and their insertions on the eyeball
More example sentences
  • Some patients may present with tendinopathy at the insertion of the Achilles tendon on the calcaneus.
  • The genioglossus muscles take origin from the middle of the back of the lower jaw and have a fan-like insertion into each side of the midline of the tongue.
  • The muscle is detached from its insertion at the greater tubercle of the humerus, leaving its blood supply to the thoracoacromial artery and internal mammary artery.


Mid 16th century (in sense 2): from late Latin insertio(n-), from Latin inserere (see insert).

Words that rhyme with insertion

animadversion, aspersion, assertion, aversion, bioconversion, Cistercian, coercion, conversion, desertion, disconcertion, dispersion, diversion, emersion, excursion, exertion, extroversion, immersion, incursion, interspersion, introversion, Persian, perversion, submersion, subversion, tertian, version

For editors and proofreaders

Line breaks: in|ser¦tion

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