[ in-sur-shuhn ]
/ ɪnˈsɜr ʃən /
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the act of inserting: the insertion of a coin in a vending machine.
something inserted: an insertion in the middle of a paragraph.
Botany, Zoology.
  1. the manner or place of attachment, as of an organ.
  2. attachment of a part or organ, with special reference to the site or manner of such attachment.
lace, embroidery, or the like, to be sewn at each edge between parts of other material.
Aerospace. injection (def. 6).



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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

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Origin of insertion

First recorded in 1570–80, insertion is from the Late Latin word insertiōn- (stem of insertiō). See insert, -ion


Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for insertion

British Dictionary definitions for insertion

/ (ɪnˈsɜːʃən) /


the act of inserting or something that is inserted
a word, sentence, correction, etc, inserted into text, such as a newspaper
a strip of lace, embroidery, etc, between two pieces of material
anatomy the point or manner of attachment of a muscle to the bone that it moves
botany the manner or point of attachment of one part to another

Derived forms of insertion

insertional, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for insertion

[ ĭn-sûrshən ]


The point or mode of attachment of a skeletal muscle to the bone or other body part that it moves.
The placing of a dental prosthesis in the mouth.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.