Simple Definition of insertion

from our Learner's Dictionary

insertion

noun

plural insertions
1
: the act or process of putting something into something else : the act or process of inserting something
Treatment may include the insertion of a tube in his ear.
2
: something (such as a comment) that is added to a piece of writing : something that is inserted
The report contains a number of insertions.

Cite this Entry

“Insertion.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/insertion. Accessed 23 Jun. 2026.

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