insertion

noun

in·​ser·​tion in-ˈsər-shən 

1

: something that is inserted: such as

a

: the part of a muscle that inserts

b

: the mode or place of attachment of an organ or part

c

: embroidery or needlework inserted as ornament between two pieces of fabric

d

: a section of genetic material that is inserted into an existing gene sequence

2

a

: the act or process of inserting

b

: the mutational process producing a genetic insertion

insertional

in-ˈsər-sh(ə-)nəl 

adjective

Examples of insertion in a Sentence

Treatment may include the insertion of a tube in his ear.

The report contains a number of insertions.

Recent Examples on the Web

This transfer module is scheduled to be jettisoned from the rest of the stack in October 2025, and after that the remaining Mercury approach and orbit insertion maneuvers will be carried out with the chemical propulsion subsystem of the European MPO spacecraft. —Beth Mole, Ars Technica, 16 May 2024

The therapy involves the insertion of fine needles into the skin to produce a therapeutic effect. —Bebe Hodges, USA TODAY, 29 Apr. 2024

The insertion of the legislation, dubbed Sammy’s Law in honor of a 12-year-old killed by a driver in Brooklyn over a decade ago, was secured as lawmakers began to authorize portions of the budget on Thursday. —Tim Balk, New York Daily News, 18 Apr. 2024

Whatever its moniker, the new insertions read like the handiwork of a summer intern who’s lived in the city for six days. —Hannah Edgar, Chicago Tribune, 15 June 2024

Word History

First Known Use

1539, in the meaning defined at sense 1

Kids Definition

insertion

noun

in·​ser·​tion in-ˈsər-shən 

1

: the act or process of inserting

2

a

: something inserted

b

: the part of a muscle that is attached to a part to be moved

3

: the mode or place of attachment of an organ or part

Medical Definition

insertion

noun

in·​ser·​tion in-ˈsər-shən 

1

: the part of a muscle by which it is attached to the part to be moved compare origin sense 2

2

: the mode or place of attachment of an organ or part

3

a

: a section of genetic material inserted into an existing gene sequence

b

: the mutational process producing a genetic insertion

insertional

-shnəl, -shən-ᵊl 

adjective