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Definition of insertion

insertion

/ɪnˈsɜːrʃən/
in · ser · tion

Plural:insertions
•
Adjective:insertional
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insertion Lexical Profile

insertion Game Scores & Validity

• noun

1

The action of placing, fitting, or introducing something into another thing.

Example

"The procedure requires the careful insertion of a thin catheter into the vein."


2

An amendment, word, or passage added into a text, document, or publication.

Example

"The editor marked several new insertions in the margins of the final manuscript."


3

In anatomy, the point or manner of attachment of a skeletal muscle to the bone or other structure that it moves during contraction.

Example

"The tendon of the biceps brachii has its primary insertion on the radial tuberosity of the forearm."


4

In genetics, a type of mutation in which one or more extra nucleotide base pairs are added into a DNA sequence.

Example

"A single base-pair insertion can cause a frameshift mutation that alters the resulting protein."

Synonyms
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Antonyms
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• Rhymes for insertion

Word Origin & Etymology

Borrowed in the early 16th century from Late Latin insertio, a noun of action derived from the Latin verb inserere ('to put in, implant, or introduce'), from in- ('into') and serere ('to join or entwine').

Cite this Entry


Wordmom. (2026). Definition of Insertion. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/insertion
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