Emily Dickinson Lexicon

IN-SER'TION, n. [Fr. from L. insertio.]

1. The act of setting or placing in or among other things; as, the insertion of cions in stocks; the insertion of words or passages in writings; the insertion of notices or essays in a public paper; the insertion of vessels, tendons, &c. in other parts of the body.
2. The thing inserted. Broome.