insertion

in·ser·tion

noun \in-ˈsər-shən\

Definition of INSERTION

1

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

—in·ser·tion·al \-shnəl, -shən-^əl\ adjective