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

The 25-year-old Netherlands international was not registered in time to feature on Merseyside last night, mingling in the directors’ box at half-time rather than providing an insertion of inspiration for manager Unai Emery. —Jacob Tanswell, The Athletic, 16 Jan. 2025

If needed, a cystoscopy—involving the insertion of a lighted scope into the urethra—can directly check for blockages or other structural abnormalities.13 If a UTI is involved, a urine culture and urine DNA test may be ordered to pinpoint which species of bacteria is involved. —Kashif J. Piracha, Verywell Health, 1 Jan. 2025

The bill advanced even with the insertion of a controversial measure that would ban some gender-affirming care for transgender children of service members. —Ellen Mitchell, The Hill, 18 Dec. 2024

These require insertion to a depth of at least two inches to work properly. —Katie Rosenhouse, Southern Living, 24 Nov. 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